If there is no transportation arranged after arriving at the airport, what action should you take?

In the situation where there is no transportation arranged after arriving at the airport, the appropriate action is to call crew scheduling. This choice is correct because crew scheduling is responsible for coordinating the logistics of flight attendant assignments, including transportation. They have the necessary information and authority to arrange alternative transportation if needed.

Relying on a colleague may not ensure prompt assistance or a timely resolution, as they may not have the necessary resources or information to help. Arranging a taxi yourself might seem like a viable option, but it is essential to follow official procedures to ensure that expenses are covered and that the transportation provided meets company standards. Asking a fellow employee might lead to inconsistencies or unsupported arrangements, as they might have their own commitments or schedules to manage. Thus, the most efficient and appropriate response is to reach out to crew scheduling directly.