The person went to the ticket booth to buy a trip, they now had to wait for the rails to signal the arrival or their ride at the what?\nOptions:\n- auditorium\n- fairgrounds\n- airport\n- metro station\n- amusement park
Step-by-step reasoning process below:

User
The person went to the metro station's ticket booth to buy a trip. They had to wait for the rails to signal the arrival or their ride at the metro station. The answer: metro station.
Assistant