Let's go to Wangfujing by bus .
neutral
user
Better take the subway . It's faster , and more convenient .
neutral
assistant
OK , it will be a new experience for me .
neutral
user
We have a rather comprehensive subway system here . You can get almost anywhere rather quickly on a subway , especially at this time of day when the traffic is heavy .
neutral
assistant
Where do we pay the fare ?
neutral
user
Just give the man standing there 3 yuan and he'll give you a token . Then , you slip it into the slot at the turnstile and push the turnstile to get in .
neutral
assistant
Let me pay for it . Where can I get a subway map ?
neutral
user
Ask the worker who sells tokens to give you one . It's free fo charge . Actually maps showing subway routes are posted at most stations .
neutral
assistant
Do I have to pay an additional fare to change trains ?
neutral
user
No , you don't have to . Here comes the train .
neutral
assistant