I built an AI-powered appointment booking system using n8n, VAPI, and Google Sheets. When a form is submitted, data is logged and routed to the correct industry-specific AI voice agent (Sales, MedSpa, Dental, Law, or Home Services). The agent handles the call, books the appointment, and generates a summary. A wait step ensures the call is complete before a webhook collects results and updates Google Sheets. This automation streamlines scheduling, centralizes reporting, and saves businesses time while improving lead follow-up and client engagement.