The duties of flight attendants are primarily to ensure the safety of air passengers and crew; to introduce safety equipment on board and ensure that safety rules are followed, not least during take-off and landing. Working hours can be very irregular and generally involve shifts to a large degree.
The foreman of the crew on board, the first flight attendant, is responsible for the team working according to the rules and writes a report on each trip. The chief flight attendant is the superior of the flight attendants, is partly responsible for their training and functions as a liaison with the airline management.