answer: #Person1# invites Jane to an exhibition. But Jane's out on Saturday and Sunday's her mum's birthday. Jane's also busy next week.
documents: #Person1#: Jane, I was wondering if you you had any plans for saturday afternoon.
  #Person2#: A friend and I are planing to go out, why? what's up?
  #Person1#: There is a special exhibition of french sculptures at the museum, I was hoping you ' d like to come with me.
  #Person2#: I am afraid I can't I am going to be out all day.
  #Person1#: What about sunday?
  #Person2#: i wish i could, but it's my mums birthday.
  #Person1#: Maybe next week.
  #Person2#: Much as I ' d like to, I am afraid i wont be free next week, I have a lot of work.
  #Person1#: Sorry to hear that, I was really looking forward to spending some more time with you, I really enjoyed our last chat.
  #Person2#: I am really sorry too, maybe I can give you a call sometime.