Google translates:
"Hi how am I doing so the weeks that are rented out are marked for applicants. Have known deleted it. it also blocks the day before and after for preparation how do i delete it "
@Trine70
Booked dates are automatically shown as being booked (the reservation is mentioned on it)
The preparation time can be set in section "prices and availibilty", section "calender availibilty", Edit "preparation time".