answer: #Person1# invites #Person2# to watch movies and have lunch but #Person2# isn't available.
documents: #Person1#: We're going to the movies. Will you join us?
  #Person2#: I'm very sorry I can't.
  #Person1#: Why not?
  #Person2#: I'm afraid I have some business to attend to.
  #Person1#: Then would you like to have lunch with us?
  #Person2#: I'd love to but I have to help John with his math problems right now.
  #Person1#: Would you like me to give you a lift?
  #Person2#: No, thanks. His home is not far and I can walk there.
  #Person1#: Come on. It's no trouble at all.
  #Person2#: Ok, thank you.