What does it mean no show in air line industry?

In the airline industry, a "no-show" refers to a passenger who fails to arrive for their scheduled flight without prior notification to the airline. This can result in the loss of the passenger's ticket and may lead to additional fees or complications for rebooking. Airlines often have policies to handle no-shows, which can affect the availability of seats for other travelers. No-shows can also impact revenue management, as airlines may overbook flights based on expected no-show rates.