In a tentative reservation, the hotel holds the room for the guest until the cut-off date, which is a deadline after which the reservation may be canceled or given to other guests if not confirmed.
- Arrival date is the date the guest is expected to check-in, but the room can be held until the cut-off date.
- Guest arrives is too vague as a specific event; the room is typically held until the cut-off date.
- Specific date is a general term and doesn't refer to the industry practice of holding rooms.
Therefore, the correct answer is Cut-off date.