What is a 'No Show' in airline terms?

A 'No Show' refers specifically to a passenger who holds a confirmed reservation but fails to arrive for the flight without canceling in advance. This term is crucial in the airline industry because it can impact the airline's revenue management and seat availability. When a passenger does not show up, it means that seat can potentially go unfilled, which is a loss for the airline. Additionally, many airlines have policies that may affect the passenger's future bookings or the ability to get refunds, depending on their specific rules regarding no-shows. Understanding this term helps in managing bookings and expectations regarding travel itineraries.