Home/Workflows/AI Appointment Booking & SMS Follow-Up Automation (n8n + Twilio + Cal.com + Airtable)

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AI Appointment Booking & SMS Follow-Up Automation (n8n + Twilio + Cal.com + Airtable)

Automate Appointment Bookings, Follow-Ups & Customer Conversations — End-to-End

▮▮▯Intermediate15 min13 nodes

$39.00

$173.00

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Wise emailvirginaiagency@gmail.com

Amount$39.00 USD

Referencevai-ai-appoint

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✦ Built with

n8nTwilioCal.comAirtableOpenAI

✦ Workflow at a glance

✦ What you get

In thebox.

workflow.json
Ready-to-import n8n workflow file
Setup guide
Step-by-step deployment instructions
Node documentation
What each node does + how to tune it
Sample data
Test inputs to verify it works end-to-end
30 days support
Email & WhatsApp deployment help
Lifetime updates
New versions delivered free, forever

✦ Setup

Live inthree steps.

Import

Open n8n → Workflows → New from JSON. Drop in the workflow.json you received.

Connect

Add credentials for each tool used (OpenAI key, Slack token, etc.). All shown in the setup guide.

Test & activate

Run on sample data to verify the flow. Toggle the workflow to active and you're shipping.

✦ Overview

What thisworkflow does.

This AI-powered appointment scheduling automation is a complete, production-ready n8n workflow designed to capture inbound leads via SMS, book appointments automatically, and intelligently follow up until conversion — without manual effort.

Built using n8n, Twilio, Cal.com, Airtable, and OpenAI, this system acts as a 24/7 AI scheduling assistant that talks to customers naturally, manages booking logic, and prevents lost leads.

Perfect for service businesses, repair services, consultants, agencies, and local businesses that rely on appointment-based sales.

🚀 What This Automation Does

✔ Receives inbound SMS enquiries via Twilio

✔ Maintains full chat history & session state in Airtable

✔ Uses an AI agent to understand customer intent

✔ Automatically books, reschedules, or cancels appointments via Cal.com

✔ Sends real-time SMS confirmations

✔ Detects STOP requests and halts messaging (compliance-safe)

✔ Runs scheduled AI-generated follow-ups for inactive leads

✔ Prevents spam with follow-up limits and cooldown rules

🧠 Smart AI Capabilities

Natural, human-like SMS conversations Context-aware replies using conversation history Automatic intent detection (new booking, reschedule, cancel) AI-written follow-up messages personalized per lead Structured output parsing for reliability

🧩 Tools & Stack Used

n8n – Core automation engine Twilio SMS – Inbound & outbound messaging Cal.com API (v2) – Appointment scheduling & calendar management Airtable – CRM-style session & lead tracking OpenAI (GPT models) – AI agent + follow-up message generation

📋 Key Workflow Modules

SMS Trigger & Command Detection Session & Chat Memory Management AI Appointment Scheduling Agent Calendar Availability Checking Booking / Reschedule / Cancellation Logic Automated Follow-Up Engine (24-hour scheduler) Compliance Handling (STOP keyword support)

🎯 Ideal For

Appointment-based service businesses IT & repair services Clinics, consultants & coaches Agencies managing inbound leads Automation builders selling done-for-you systems

📦 What You’ll Receive

Fully built n8n workflow JSON Modular, extendable architecture Clear node structure with annotations Ready for customization & white-labeling

⚠️ Requirements

Active Twilio account Cal.com account + API access Airtable base (template structure included) n8n self-hosted or cloud OpenAI API key

💡 Why This Is Powerful

Most businesses lose leads due to slow responses or no follow-ups.

This automation replaces manual booking assistants, works 24/7, and systematically converts enquiries into booked appointments — automatically.

✦ Stack · 5 tools