@Marilena81 Good luck to you, but this is not an effective way to advertise your business.
Before you start trying to drum up trade, I strongly recommend that you temporarily deactivate your room listing and fix it. Currently, you are advertising a single room that can be booked by 16 people for the price of 1. This is not how Airbnb works. You have to create separate listings for each accommodation, or else one booking will block the calendar for all the other rooms. Please take the time to learn how to use your listing service first, and then you can think about marketing (somewhere other than a Help forum, ideally).