text: Tom: We have to get the tickets Saturday
  Tom: at the latest
  Mary: why?
  Mary: why the rush?
  Tom: there might not be any tickets left after the weekend
  Mary: why do you think that
  Tom: last year it was like that
  Tom: and I don't want to end up with no tickets
  Tom: like last year
  Mary: Ok we can get them on Thursday
  Tom: ok great
target: Tom and Mary will buy tickets on Thursday, because there might not be any tickets left after the weekend.