1) I try to give you all the information you need in the ad. Please ensure to read the ad in full before asking me questions.
2) Also note that if you have chosen the correct dates in your search, you will only be able to view the ones available for those dates. So you do not need to ask if the flat is available for those dates. Airbnb does that for us ;-). Also, Airbnb automatically calculates the price and with the break down.