Create a chat bot in Telegram

I need to create a chat bot in Telegram for my clients. That is, customers will go to the chat bot and will be able to pick up a tour there by selecting specific criteria. The main purpose of the chat bot is to facilitate the work of managers in the company and accept applications from customers.
I will provide all information. In addition to the fact that the chatbot will sell tours, it should give customers basic information about Russia.
The chat bot must be in several languages. First English