A phone handset, a chat bubble and an envelope outline with dotted lines converging on one highlighted square of a calendar grid

Best AI Booking Assistant (2026): 7 Compared

A booking assistant’s whole job is one question, asked a hundred ways: “Do you have anything Thursday?” It comes in as a call while you’re with a client, a text at 9pm, an email with three people CC’d, a reply to last month’s reminder. The assistant answers it, books the slot in whatever system you use, and deals with the “actually, can we do Friday?” that follows. Most AI tools cover one of those doors. The good ones cover all of them.

The quick answer: Carly is the best AI booking assistant for a business that takes bookings by phone, text and email. It answers your business line, replies to texts and emails, books on your real availability in Google or Outlook calendars or in the booking app you already run, and handles reschedules, reminders and waitlist fills by your rules, the same way every time. Smith.ai is the pick if you want a person on standby. Howie is the pick if your bookings are meetings arranged over email.

AI booking assistants compared

Booking assistantBooks fromBooks intoReschedules and remindersBest for
CarlyCalls, texts, WhatsApp, email, your AI chatGoogle and Outlook calendars, plus apps like Square Appointments, Acuity and CalendlyYes, by text from your numberAny business that books by phone, text and email
Smith.aiCalls, with live staff availableYour calendar or softwarePer your scriptA human on standby
My AI Front DeskCalls, texts, web chatGoogle or Outlook calendarTexts after the callPhone-first shops
RosieCallsCalendar, on higher plansSummaries to youSolo operators
GoodcallCallsThrough integrationsPer integrationRepeat callers
HowieEmail (CC) and textGoogle CalendarYes, over emailMeetings arranged by email
Calendly CallieEmail (CC)Calendly availabilityYes, inside CalendlyExisting Calendly users

1. Carly

Carly is an AI assistant that takes the booking wherever it arrives and puts it on your real calendar. You write the rules once, in plain English, and it applies them to every caller, texter and emailer.

  • Answers every door. Calls, texts, WhatsApp and email land in one inbox. Carly picks up the phone 24/7, or only when nobody on your team does, and replies to texts and emails in seconds.

  • Books into what you already use. Your team’s Google or Outlook calendars, or the booking app you run: Square Appointments, Acuity, Calendly, Setmore and more. Carly connects to thousands of apps.

  • Asks your questions first. New or returning client, which service, which provider, any notes, in the order you set.

  • Handles the second conversation. “Can we push to 4?” gets a new time and a moved booking without you.

  • Fills cancellations. When someone cancels, Carly texts your waitlist and books whoever replies first.

  • Sends reminders from your number. The day before, with a one-word reply to confirm or move.

  • Calls web leads back in a minute. A form submission gets a call, then a text and an email if they miss it.

  • Books meetings over email too. CC Carly on a thread and it finds the time across all of your calendars, sends the invite and handles the reschedule. How it works for group meetings.

  • Runs from ChatGPT or Claude. Add the Carly connector and ask your AI chat to change the rules, look up tomorrow’s bookings or call someone back.

  • Best for: any business that takes bookings by phone, text and email and wants one assistant following the same rules on all of them.

  • Pricing: Free Zapier-style workflows; AI agents from $35/month. Booking pages and group polls are free.

  • Setup: paste one prompt into ChatGPT, Claude or any AI, grab a number in the chat, and you’re live in about ten minutes.

Carly business setup prompt

Paste this into ChatGPT, Claude or any AI. It walks you through the rest.

Help me connect Carly Teams so I can work with my organization's business texts, phone calls, voicemail and voice/text agents from this chat. I'll add it to you myself: tell me exactly what to click for the app you are, one step at a time, and wait for me to confirm before moving on. If a step doesn't match what I see, ask me what's on my screen. If you can do the setup yourself (Claude Code, Codex, Muse, Grok Bot), go ahead, and ask me for any key in your secure credential prompt, never in the chat. Don't tell me it's connected until list_phone_lines works, and if I have several teams, ask which to use. Before sending a text or making a call, confirm the team, recipient and message or task with me. The steps are below.

# Connect Carly Teams to an AI app

> Carly Teams works a team's business phone lines through the team's AI agents: business texts, phone calls, voicemail, the voice and text agents, and the team's CRM.

MCP server: https://carlyassistant.com/team/mcp (streamable HTTP, OAuth)

## Setup

Carly Teams isn't in any plugin or connector directory yet, so it's added as a custom connection by URL.

1. Add Carly Teams:
   - ChatGPT: open https://chatgpt.com/plugins, click Add, and choose Create MCP App (not Create plugin or Upload plugin archive). If Create MCP App isn't on the menu, turn on Developer mode first in Settings > Security and login. Name it "Carly Teams" with the description "Work with my team's business texts, calls, voicemail and voice/text agents," paste https://carlyassistant.com/team/mcp as the server URL, choose OAuth, create it, and sign in. Then in the message box open the + menu, choose Developer mode, and pick Carly Teams. No plugin needs to be built, packaged or uploaded.
   - Claude (claude.ai, Claude Desktop, or Cowork): Customize > Connectors > Add custom connector, name it Carly Teams, paste https://carlyassistant.com/team/mcp, and sign in.
   - Claude Code: `claude mcp add --transport http --scope user carly-teams https://carlyassistant.com/team/mcp`, then /mcp, pick carly-teams, and authenticate.
   - Codex: `codex mcp add carly-teams --url https://carlyassistant.com/team/mcp`, then `codex mcp login carly-teams`.
   - Cursor: add {"mcpServers": {"carly-teams": {"url": "https://carlyassistant.com/team/mcp"}}} to ~/.cursor/mcp.json, then sign in to carly-teams from Customize.
   - Muse: a custom connector to https://carlyassistant.com/team/mcp with a Carly API key as its bearer token. The key comes from carlyassistant.com/account (API key under Carly Teams) and goes in Muse's connector settings, not in a chat message.
   - Grok: grok.com/connectors > New Connector > Custom, paste https://carlyassistant.com/team/mcp, and sign in.
   - Grok Bot: a custom remote MCP server named carly-teams at https://carlyassistant.com/team/mcp. Approve it and sign in.
   - Perplexity: Plugins in the sidebar (or Customize > Connectors), then Add custom > Connector > Add MCP connector. Choose Remote, name it Carly Teams, paste https://carlyassistant.com/team/mcp, pick OAuth, check the box and click Add, then click the Carly Teams card to sign in.
   - Anything else: a remote MCP server (streamable HTTP) named carly-teams at https://carlyassistant.com/team/mcp. It signs in with OAuth.
   Sign in with the Carly account that belongs to the organization.

2. Once it's added, the Carly Teams tools show up in the chat, including list_phone_lines. If they don't, turn Carly Teams on for the chat or start a new chat.

3. To check it worked, call list_phone_lines: it returns the teams and phone lines the account can reach. A team with no phone line yet can get one with find_numbers (optionally by area code) and get_number, which may return a checkout link to finish.

4. Something to try first: "Review our missed calls and voicemail and help me reply to customers." Carly Teams also reads and answers business texts, has the team's agent make calls, and edits the voice and text agents. Texts and calls go out at once from the agent's number and can't be taken back. Team permissions apply.

## Email, calendars and workflows

Email, calendars, files, booking pages and workflows are the regular Carly connector, added separately. It's listed in ChatGPT's plugin directory (https://chatgpt.com/plugins/plugin_asdk_app_6a67a26316b88191860222f918d4ec54) and Claude's connector directory (https://claude.ai/directory/carly), and connects anywhere else at https://carlyassistant.com/mcp/. Its setup is https://carlyassistant.com/mcp.txt.

Get started, or book a call and we’ll set it up with you.

2. Smith.ai

Smith.ai runs an AI receptionist and a team of live North American receptionists, and you can stack them so the AI answers first and a person steps in.

  • Best for: businesses that want a human available for the bookings the AI shouldn’t take.
  • Pricing: the AI receptionist is free for 25 calls a month, then billed per call.
  • Limitations: billed by call, so a busy booking line adds up, and texts and email are separate products. See Smith.ai alternatives.

3. My AI Front Desk

My AI Front Desk is an AI receptionist that books into Google or Outlook calendars, with texting and web chat bundled into its plans.

  • Best for: phone-first shops that want texts handled from the same tool.
  • Pricing: from $99 a month for 200 minutes.
  • Limitations: no free plan, and a 3.3 Trustpilot score when we checked. See My AI Front Desk alternatives.

4. Rosie

Rosie answers the phone, takes messages and sends you a summary, with calendar booking on its higher plans.

  • Best for: solo operators who mostly need the phone answered.
  • Pricing: from $49 a month for 250 minutes.
  • Limitations: phone only, and booking starts on the Scale plan. See Rosie alternatives.

5. Goodcall

Goodcall is an AI phone agent billed by unique caller, with integrations for common CRMs and booking tools.

  • Best for: businesses where the same customers call again and again.
  • Pricing: from $79 a month for 100 unique callers.
  • Limitations: lots of first-time callers burn the allowance, and booking depends on the integration you connect. See Goodcall alternatives.

6. Howie

Howie is an email scheduling assistant you CC on a thread. It finds times, sends invites and follows up until the meeting is booked.

  • Best for: founders and teams whose bookings are meetings arranged by email.
  • Pricing: Team plan from $25 a month in shared credits.
  • Limitations: meetings only, no phone, and built around Google Calendar. See Howie alternatives.

7. Calendly Callie

Callie is Calendly’s assistant: CC it on an email and it offers times from your Calendly availability, then books.

  • Best for: people already on Calendly who want the email thread handled too.
  • Pricing: included with Calendly’s Standard Plus and Teams Plus plans.
  • Limitations: email only, inside Calendly’s model, with no calls or texts. See Calendly Callie alternatives.

How to pick an AI booking assistant

  • Bookings by phone, text and email, into the calendar or app you already use: Carly.
  • A person available for tricky calls: Smith.ai.
  • Phone answering on a budget: Rosie or Goodcall.
  • Meetings booked over email: Howie, or Callie if you’re on Calendly. Carly does this too, across every calendar you have.

Related: best AI virtual receptionist, best AI scheduling coordinator, best AI appointment setters.

FAQ

What is an AI booking assistant?

Software that answers booking requests by phone, text or email, checks your real availability, books the slot and handles the reschedule. Carly does that on every channel and sends reminders from your own number.

Can an AI book appointments over the phone?

Yes. Carly answers your business line, asks your intake questions, books while the caller is on the line and texts the confirmation. Smith.ai, My AI Front Desk, Rosie and Goodcall answer calls too, with booking depending on plan or integration.

Will it work with my booking software?

Carly books into Google and Outlook calendars and connects to booking apps like Square Appointments, Acuity, Calendly and Setmore. It connects to thousands of apps, so if your software has an API, Carly can book into it.

Can it fill cancellations automatically?

Carly can. When a booking is cancelled, it texts your waitlist and books whoever replies first.

How long does setup take?

About ten minutes for Carly. Paste the setup prompt into ChatGPT or Claude, pick a number in the chat, and connect your calendar or booking app. Get started.

Ready to automate your busywork?

Carly schedules, researches, and briefs you—so you can focus on what matters.

See what people say

"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.

Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.

On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."

Gus Ibrahim, Founder & Director, IHR