Reservations are normally edited and viewed using the Reservations add-in in Teams. It’s only possible to view your own reservations or those made by other team members - not the entire organization. But an administrator has the ability to view all the reservations across the organization and the possibility to delete reservations made by others.
Requires the ReservationsAdmin roleYou need to be assigned the role “ReservationsAdmin” to be able to view and delete other users reservations - see Assign ReservationsAdmin role
To view reservations as a ReservationsAdmin go to Admin web site -> Account -> Reservations:
View and delete reservations
From the admin reservation page you can view the list of all reservations. Click the “Delete” button to remove a reservation.