Help us find the right chatbot for our website

We will reward 20 Dollars to the person who will find us the best chatbot solution for our business. We are a Hotel business and want a messaging solution on our website. it should have an AI- for automatic responses but also we can answer directly. It should be easily implemented on our html page. Can you please send us your tipps for the best solution with name and their weblink. If we will use your tipp we will grant you 20 Dollars. It is important it is a solution that has low or no monthly charged.