text: Marilyn: Mark, darling, are you free to talk now?
  Mark: not really, sweetie
  Mark: what's up?
  Marilyn: In half an hour?
  Mark: ok
  Mark: So what is it sweetheart?
  Mark: Why don't you call me? I'm available till 3:45
  Mark: Darling, I can't reach you. Maybe later.
  Mark: <3
target: Mark is free to talk until 3.45 but he can't reach Marilyn. 