Woocommerce accomodation bookings; book half days

[FelixAnstdt]

I have set that you book nights and not days and I also set a time of arrival and a time of departure. The goal should be that after a booking, the arrival and departure day should only be seen as half booked in the calendar (with a red triangle instead of completely filled out) and that these half booked days can still be booked. Thus, for example, a departure day can also be an arrival day and an arrival day can also be a departure day. As you can see on the attached screenshot, this already works for the first day of a booking. But not for the last day of a booking.
I hope you can help me with this. Thanks!
Here you can find the regarding Website: https://villa-albatros.at/produkt/appartment1