Aria - Hotel WhatsApp Assistant

Hospitality

Multilingual guest service agent with vision receipt verification

Multilingual2 AI pipelinesReal-time room data24/7 availabilityReceipt verified in secondsZero front desk involvement for routine queries

the problem

Hotel front desk staff spend hours answering repetitive guest messages on WhatsApp: room availability, booking confirmations, receipt questions. This leaves little time for high-value guest interactions. Most small and mid-size hotels cannot afford 24/7 staffing.

the approach

Aria is a multilingual WhatsApp AI agent that handles the full guest communication cycle autonomously. It plugs into the hotel's existing WhatsApp number via GreenAPI, pulls live room data from Google Sheets, and uses GPT-4o Vision to verify receipts with no human needed for routine queries.

how it works

01Guest sends a WhatsApp message to the hotel number
02GreenAPI triggers the n8n workflow instantly
03Message is parsed and routed: text queries go to the AI agent, image messages go to Vision AI

the result

→Zero human involvement for routine guest queries
→Multilingual support out of the box with no extra configuration
→Receipt verification handled in seconds instead of manual checking

technical highlights

→Dual-path routing: text vs image handled by separate AI pipelines
→Persistent memory so Aria remembers context within a conversation
→Google Sheets as a no-code database so hotel staff update room data without touching the system

stack

GreenAPIGPT-4o Visionn8nGoogle Sheets