AI-powered restaurant booking system with Telegram, Calendar & Email notifications
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What to replace before upgrading
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) Booking Agent (v1.8), Information Gathering Agent (v1.8) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (11)
- Telegram Trigger
n8n-nodes-base.telegramTrigger - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Auto-fixing Output Parser
@n8n/n8n-nodes-langchain.outputParserAutofixing - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured - Switch
n8n-nodes-base.switch - Telegram
n8n-nodes-base.telegram - Edit Fields (Set)
n8n-nodes-base.set - Google Calendar
n8n-nodes-base.googleCalendar - AI Agent
@n8n/n8n-nodes-langchain.agent - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - Gmail
n8n-nodes-base.gmail
What it does
Overview This workflow is an AI-powered Booking Assistant that automates restaurant and event reservations through Telegram. It interacts with the user in natural conversation, collects booking details (guest count, preferences, date/time, and special requests), finalizes the draft, and confirms the reservation by storing it in Google Calendar and sending an email confirmation — fully automated end-to-end. --- How It Works 1. User Interaction - The workflow starts with a Telegram welcome message. - The AI agent asks step-by-step questions: - Number of guests - Seating preference (indoor/outdoor/private room) - Special occasion requests (birthday, date, etc.) - Preferred date & time - Once details are gathered, it generates a draft booking summary. 2. Confirmation & Personal Details - The user reviews the draft and confirms. - The assistant then asks for personal details (name, email, phone number). 3. Booking & Notifications - After confirmation, the details are sent to Google Calendar to create an event. - A confirmation email is sent to the user with all booking information. - A final Telegram message confirms that the reservation is successfully completed. --- How to Use - Triggered directly from Telegram Bot. - Simply start chatting with the bot to begin the reservation process. - The assistant will guide the user step by step until the booking is finalized. - Once completed, the user receives both an email confirmation and a Telegram confirmation message. --- Requirements To use this workflow, you’ll need: - n8n account (self-hosted or cloud) - Telegram Bot Token (for chat interaction) - OpenAI or OpenRouter API Key (for AI-driven conversation) - Google Calendar API access (to create bookings) - Gmail / SMTP credentials (to send confirmation emails)