answer: It is #Person1#'s first visit to Prague. #Person2# states a transportation problem within the city before giving advice to #Person1# in several interesting places, and gives a guide of taking the subway in the city, as well as suggests a daily pass for subway taking.
documents: #Person1#: It's my first visit to Prague, I'll be here for three days for a conference, then I have a day on my own to do some sightseeing before I head back home. What do you suggest I see when I'm here?
  #Person2#: There are many interesting places you should be sure to see. One problem is transportation, however. Because the city is very old, the roads are narrow and congested. If you only have three or four days to visit, you don't want to spend them waiting in traffic in a cab. I suggest you take the subway.
  #Person1#: The subway? But is there a subway station next to my hotel? I have to go between the conference center and the hotel several times a day. . .
  #Person2#: No worries, there's a subway station at the conference center itself, and a shuttle from your hotel to the conference center that takes only 5 minutes. When you do your personal sightseeing, you can first take the shuttle to the conference center, then hop on the metro.
  #Person1#: Is it expensive to ride on the underground?
  #Person2#: You can get a daily pass that will allow you to travel unlimited for the whole day for about 6 dollars. Otherwise, you can pay by trip, which is about 50 cents to 2 dollars each trip, depending on how far you go.
  #Person1#: Is it easy to get lost?
  #Person2#: No, no. . . . it's very hard to get lost. There are two lines, one that goes in a circle, the other that is straight. If you get lost, there are always subway attendants that can help you find your way.