text: Pauline: Good evening Tom. Did we fix an appointement . Pauline Lacotte . Therapeute
  Tom: Yes today at 6:30pm
  Pauline: I'm late, I could see you only at 7
  Tom: I'm already in the waiting room. Ok for 7? How long would it be?
  Pauline: 20 minutes. Sorry again
target: Tom's appointment with Pauline is rescheduled from 6:30 to 7:00.