answer: Jim and his brother want to travel but it's expensive. Mary suggests camping and renting the equipment, which is cheaper.
documents: #Person1#: Hi, Jim. I haven't seen you for a few weeks.
  #Person2#: Oh, hi, Mary. I have been studying a lot for my final exam.
  #Person1#: Well, this semester is about over now.
  #Person2#: Yeah. My brother is coming for a visit this summer, and we'd like to see some of the country, but traveling is so expensive.
  #Person1#: Have you thought about camping?
  #Person2#: Camping? I've never done that.
  #Person1#: I think you'll really like it. You can rent the equipment you need.
  #Person2#: Is it cheap?
  #Person1#: Yeah, much cheaper than buying or staying at the hotel.
  #Person2#: Good idea. Here is my bus. I'll talk to you about this again and get all the details.