To overbook is to reserve seats or rooms for more people than there are seats or rooms available.
An example of overbook is to sell more tickets than there are seats on a flight.
to issue more reservations for (an airline flight, hotel, etc.) than there are accommodations
verbo·ver·booked, o·ver·book·ing, o·ver·books
To take reservations for (an airline flight, for example) beyond the capacity for accommodation.
- To take reservations beyond the capacity for accommodation: a restaurant that regularly overbooks for dinner.
- To take on more social engagements or other commitments than one is capable of fulfilling.
- Decrease stress by not letting yourself get overwhelmed; solve issues as they come, do not overbook your home or work schedule, and learn to let go of disagreements, guilt, and worry.
- No longer will you forget what is next on your schedule and overbook yourself later in the day, which will just leave you overwhelmed and stressed.