text: Amy: Hi, Mark.
  Mark: Hi, Amy.
  Amy: Do you think it's time to change tyres?
  Mark: Up to you. You may wait a little.
  Amy: I'm going away next week. Will you find some slot this week. Any time.
  Mark: Thursday. 4.30pm
  Amy: Sign me in, please.
  Mark: Done.
  Amy: Thank you. 
  Mark: Only the company car?
  Amy: Yes. Jim will take care of his car himself. He'll contact you. I don't know his schedule.
  Mark: Ok. Tell him that it's getting busy.
  Amy: I know. That's why I want to have it done now. Before everyone wakes up to do that.
  Mark: Good idea. Like that :-)
  Amy: :-)
  Amy: See you Thursday.
  Mark: See you.
target: Mark signed Amy for changing tires in the company's car on Thursday, 4.30 pm. Jim will contact Mark later.