WhatsApp Ordering AI Agent

An AI powered WhatsApp waiter for a restaurant that handles the entire ordering process end to end, from answering menu questions to notifying the kitchen with no staff involvement.

n8nWhatsAppGoogle GeminiSupabaseGoogle SheetsTelegram
Problem

Restaurants weren't losing customers over food quality, they were losing them in chats staff couldn't keep up with. The same questions got answered over and over, and every order had to be manually taken and tracked, pulling staff away from the floor and slowing down service during busy hours.

Process
  1. A customer messages on WhatsApp and the AI responds immediately, answering questions using a fixed knowledge base and handling the conversation like a human waiter would.
  2. The AI takes the order, asks for the customer's name and phone number, and confirms pickup or delivery — collecting the address only if delivery is chosen.
  3. Each finalized order gets a unique ID and is logged into Google Sheets with the customer's details.
  4. A 3-minute edit window opens after the order is finalized, during which the customer can request changes and the AI updates the order accordingly.
  5. Once the window closes, no further changes are accepted, and the kitchen is automatically notified on Telegram with the finalized order.
Result

Every customer gets a fast, natural ordering experience without waiting on staff, every order lands in the kitchen structured and accurate, and requests for anything outside the menu are handled professionally instead of guessed at.

Business Impact

The restaurant can handle more orders at once without adding staff. Customers get a consistent, human like experience any time of day, and the kitchen receives clean, ready to execute orders instead of chasing down details mid rush.

A look inside

Screenshots

n8n workflow — BML Restaurant Chat Assistant
Kitchen Timer workflow
Order Editable workflow
Restaurant Orders sheet
WhatsApp order confirmation
Kitchen Telegram notification
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