<human>:  With regards to the Airline Reservation system, where does the name ‘airline’ come from?
<bot>: The word “airline” is derived from the French word “aile”, which means “wing”. In the early days of aviation, pilots would use wings to help them navigate the skies. The wings were used to steer the aircraft, and the wings were attached to the plane’s body by a rigid frame called a fuselage.