A: Could you tell me how I can get to Green Garden?
B: Just get off at Green Garden Station.
A: Which line should I take?
B: Take Line 2 at this station.
A: And do I need to change lines?
B: Yes. First, you should change to Line 9 at the Boom Road Station. And then take Line 7 at the Stone Bridge Station.
A: How many times should I transfer?
B: Twice. You could ask the stewards when you get off in case you can't remember.
A: OK. Please give me a ticket.
B: Here you are.