AI agent for a barbershop that automatically communicates with clients on Telegram and helps the administrator process appointment requests. The agent answers questions about services, prices, masters, schedule, available slots, promotions, and visiting rules, and can also book clients for services through Google Calendar. The solution is built on the basis of Telegram API, n8n, AI model, Google Sheets, and Google Calendar. Google Sheets is used as a knowledge base: it stores services, prices, masters, FAQs, promotions, and business settings. Google Calendar is used to check availability and create client appointments. The agent can be integrated with CRM, Google Workspace, Google Sheets, Google Calendar, Telegram, Instagram Direct, the website, and other external services via API. Such a solution helps automate initial communication with clients, reduce the workload on the administrator, and process appointment requests more quickly.