When we are about to travel by plane we conduct a several activities like approaching the check-in area, where a staff member expects us to handover a boarding card, and drop off our baggage. After passing through security checks, we reach at the boarding gate, where another staff member ensures that our boarding card is in proper order. In addition, another staff member takes us to the aircraft. In the intervening time, other employees have filled the aircraft with fuel, other workers have off
