Passenger service agents handle administrative procedures for passengers before and after a flight, such as reserving tickets, releasing boarding passes, and accepting luggage. Because this role involves significant interaction with passengers, passenger service agents play a major part in an airline’s customer service function, and they must be diplomatic and respectful in all situations, whether they’re asking passengers to comply with airline rules or explaining flight information. They typically work inside airport terminals, staying at counters or gates and occasionally walking around to assist passengers. In line with airport operating hours, they may take day or night shifts, with the possibility of overtime during busy periods.