Final answer:
If a bag remains unclaimed after a flight, the appropriate course of action is to report it to the authorities.
Step-by-step explanation:
If a bag arrives at your station and remains unclaimed after the flight, the appropriate course of action would be to report the unclaimed bag to the authorities. This is important because unclaimed bags can potentially pose a security risk and need to be handled by the relevant authorities. Opening the bag to check for identification and contact information without proper authorization is unauthorized and could be considered a privacy violation.