Connecting reserves for HK purposes

In self-catering accommodation, we often find that a client makes another reservation through booking to extend their stay, while they are already in the hotel. As it is a new booking, it is necessary to check-out and check-in again, as well as informing the housekeeping department that it is a continuation and not a check-out. It could be possible to integrate a function to connect reservations for Housekeeping purposes.