Which is a common responsibility of a flight attendant during a flight?

Monitoring passenger comfort and safety is indeed a fundamental responsibility of a flight attendant during a flight. This role encompasses various tasks such as ensuring that passengers are seated with their seatbelts fastened, providing assistance during boarding and disembarking, offering refreshments, addressing passenger inquiries, and being vigilant to any safety issues that may arise. The flight attendant is often the primary point of contact for passengers and is trained to respond to any emergencies, making passenger well-being a top priority throughout the flight.

The other options relate to more specialized functions that are not within the flight attendant's scope of responsibilities. Conducting aircraft maintenance checks is typically handled by maintenance personnel or engineers, while planning the flight route is the responsibility of the flight operations team, including pilots and dispatchers. Managing air traffic control communications is specifically the duty of the flight crew in coordination with air traffic controllers, ensuring safe and efficient flight operations.