What defines a No-Show Passenger?

A No-Show Passenger is characterized as someone who confirms a flight but fails to check in for that flight. This definition is crucial for airlines and travel businesses because it affects seat inventory management and financial projections.

When a passenger confirms a reservation, they create an expectation that they will occupy a seat on the flight. However, if that passenger does not check in or show up, the airline might have an empty seat that could have been sold to another traveler. This situation leads to operational inefficiencies and potential revenue loss, hence the significance of tracking and managing No-Show Passengers.

While other scenarios listed in the options involve passenger behavior related to flight schedules or reservations, they do not meet the specific criteria that define a No-Show Passenger. For instance, arriving late but managing to board still results in their presence on the flight, which negates the No-Show classification. On the other hand, changing flights unexpectedly or canceling a reservation does not pertain to the No-Show situation as these actions are often communicated and accounted for differently in airline systems.