Such information can be found in section "Dashboard", linked on the system's main menu:
In the left-top part of the Dashboard you can find a widget "Today's Guest Summary":
Numbers in the left column refer to amount of persons, while right column shows amount of bookings.
- Guests In-House Now - number of persons / bookings which stayed in property last night, but haven't been checked-out yet (or cancelled, or marked as no-shown) + number of persons / bookings which started their stay today and have been already checked-in
- Guests Arriving Today - number of persons / bookings which start their stay today, but haven't been checked-in yet
- Guests Leaving - number of persons / bookings which are supposed to check-out today, but haven't done it yet.
- Guests In-House Tonight - number of persons / bookings which are going to spend this night in the property. It is calculated as:
 =  +  - 
Where numbers above stands for variables on given position on this list.