@Emma2272 airbnb cover their tracks by saying you will need to follow local rules and regulations at all times. So it is your job to inform your guests and do all the administrative work concerning your bookings. If you do not want any future bookings, better close the calendar for the necessary number of days. It is still possible to travel for work though, so you might miss out on some bookings.
Follow local laws and regulations also go for the guests, so it is really up the guests to cancel or reschedule, but it will not harm to give them a gentle reminder and ask for the purpose of their visit. It is unlikely that all your bookings are work related.