answer: #Person1# invites Jason to the barbecue. Jason tells #Person1# that he'd become a vegetarian and he feels better having a vegetarian diet. #Person1# feels surprised and will prepare some vegetarian food for him.
documents: #Person1#: Hello, Jason. Are you free this Saturday evening?
  #Person2#: Yes. I have no plans.
  #Person1#: Would you like to Come to our barbecue?
  #Person2#: Yes, that sounds wonderful.
  #Person1#: OK. See you then.
  #Person2#: But wait, wait, will there be food that is not meat? You know. I'm a vegetarian
  #Person1#: Hey! I didn't know that! When did you become a vegetarian?
  #Person2#: The other day, I decided that I needed to loose more weight so I am going to try to be a vegetarian. And you know what? I don't miss the taste of meat.
  #Person1#: Relly? That's amazing.
  #Person2#: Yes, it really is. After having vegetarian diet. I have much more energy, I need less sleep, I feel calmer. I can maintain an ideal body weight without worrying about how much I eat and I can think more clearly.
  #Person1#: Are you kidding? I really don't think that you think less clearly on non-vegetarian diet.
  #Person2#: Yes, maybe. But I feel better since becoming a vegetarian. Maybe you could also have a try.
  #Person1#: Maybe I'll also have a try some day, but I'm afraid that it would be difficult for me to refuse meat.
  #Person2#: Maybe you would change your mind after having a vegetarian diet.
  #Person1#: We'll see. Anyway, I'll prepare some vegetarian food for the barbecue. See you then!