Final answer:
In aviation, a person who is not part of the crew and is traveling on an aircraft is known as a passenger. Passengers are responsible only for their own travel needs and comfort, not flight operations.
Step-by-step explanation:
A passenger is the term used to describe a person, other than a crew member, who is carried on board an aircraft. Passengers are individuals who are not part of the flight operations but are traveling in the aircraft for various purposes such as tourism, business trips, or transit to other destinations. Unlike the flight attendants and pilots, passengers are not responsible for any operational aspect of the flight and primarily concern themselves with their own comfort and travel needs.