text: Carlos: I'll be in late
  Carlos: cover for me please
  Irene: sure no prob
  Irene: the boss will be in at 10:30
  Carlos: great I should be in by then
  Irene: ok, do you have nay meetings?
  Carlos: no just pick up the phone and say i'm in a meeting
  Irene: sure no problem
target: Carlos will be late. The boss will be in at 10:30. Carlos should arrive there until then. 