The staff announces the platform has changed just as the student is about to head there. The student must ask which one is correct and react quickly.
The transportation is delayed with no clear new time. The student must decide what to do — wait, ask for alternatives, or find another way.
The student realizes they weren't paying attention and isn't sure if their stop is next. They must ask a passenger to confirm quickly.
The ticket counter only accepts cash, or the machine is out of order, and the student must ask for an alternative way to buy a ticket.