answer: Chary'll celebrate his father's 50th birthday tonight and #Person1#'ll watch a movie with others tomorrow night. Since they can't find a suitable time for both of them, they decide to meet some other time.
documents: #Person1#: Hi, chary, are you busy this evening?
  #Person2#: sorry, I'm afraid that I've got plans tonight.
  #Person1#: what are you doing?
  #Person2#: I'm going to my parents'house for my father's birthday.
  #Person1#: how old is he today?
  #Person2#: it's his 50th birthday.
  #Person1#: well, wish him a happy birthday for me.
  #Person2#: sure thing. What are your plans for the evening?
  #Person1#: I was just thinking of going to a movie tonight.
  #Person2#: well, if you can wait until tomorrow night, I'll go with you then.
  #Person1#: sorry, I've got people coming over tomorrow night.
  #Person2#: sounds like this weekend just isn't going to work out for us.
  #Person1#: sounds that way. Maybe some other time then?
  #Person2#: sure. Hey, I'm sorry, but I've got to get going.
  #Person1#: yeah, me, too. It's about time I made a move.
  #Person2#: say hello to your friends for me.
  #Person1#: likewise. See you later.
  #Person2#: Bye!