text: Tom: hi, are we seeing each other tonight?
  Alexa: If I don't have to stay longer at work
  Tom: no, again!
  Alexa: We're having an important deadline and I'm the one responsible
  Tom: you're always busy
  Alexa: Sorry, I'll let you know about 6pm
  Tom: Ok, I'll wait
target: Alexa has an important deadline. She will let Tom know at 6pm if they meet tonight.