text: Alice: Hey, you! I'm at Magda's
  Alice: Care to come over?
  Mark: Sorry, couldn't find my phone...
  Mark: Can't make it today anyway
  Alice: Ok, what about Friday?
  Mark: I'm working
  Mark: But I can make it on Sunday
  Alice: What time?
  Mark: I'm free the whole day
  Alice: Ok, I'll tell Magda and she'll call you
  Mark: okay
  Mark: let me know
target: Alice is at Magda's place. Mark can't join them today and on Friday because of work. He would like to meet on Sunday. 