Need a bot answering machine in Telegram

You need to write a voicemail bot in Telegram for technical support of the Internet project. The answering machine must receive a question and compare it using the shingle method with the database of questions in our database. If the match is more than 50% match, the answering machine must generate the 5 most suitable answers and arrange them in order from the highest percentage of match to the lowest. If the database does not find a suitable answer (or if the user clicked on the command that the answer to his question he did not find) - the user is offered to clarify the question, or go to the page with the feedback form.