Similar to my idea located here, https://protonmail.uservoice.com/forums/284483-proton-mail-calendar/suggestions/51229339-booking-page-sync-availebility-from-my-calendar , I want to set up an option that when someone book my time, it will automatically also make some dedicated time before and after the booking to be unavailable , to avoid back to back bookings, And i want that unavailable time to be something we can decide, and not a fixed time