What is the term for a passenger with a confirmed space who fails to check in?

The term for a passenger with a confirmed space who fails to check in is "No Show Passenger." This designation is important in the travel and aviation industry because it helps airlines manage their seating capacities and overall booking processes. A No Show Passenger indicates that an individual had a reservation but did not arrive at the airport or complete the check-in process, leaving the seat empty for that flight.

Recognizing No Show Passengers is crucial for airlines as it affects flight load factors, revenue management, and the ability to accommodate standby passengers. When a passenger is marked as a No Show, airlines typically have policies that may allow them to cancel that passenger's itinerary for subsequent flights, freeing up seats for other travelers.

In contrast, the other terms refer to different scenarios within air travel. A Misconnected Passenger describes someone who fails to make a connecting flight, an Oversold Passenger pertains to situations where an airline sells more tickets than available seats anticipating that some passengers may not show up, and an Ok No-Record Passenger refers to individuals who have a confirmed reservation but do not have their details properly reflected in the airline's booking system. Each of these concepts has its own implications for airline operations but does not pertain specifically to the situation of failing to check in with a