Ability to Connect Two Reservations

I often encounter situations where a guest initially books through a platform and later decides to extend their stay by booking extra days directly with me. When this happens, I face a couple of challenges: the booking codes for these two reservations can’t be the same, and I also need to inform my cleaning staff that no cleaning is required between these stays. It would be very helpful to have an option to link the two bookings, allowing the codes to remain consistent and automatically notify the cleaners.