text: Kevin: anyone here that would like to help me greet the visitors from Greece this weekend?
  Alma: would love to but unfortunately I'm working this weekend :(
  Winston: I might. When exactly are they coming?
  Kevin: their plane arrives at 10 am on Saturday. We need just one more person.
  Winston: I'm not sure if I'm gonna make it for 10. I'm going out on Friday night, you know the deal :D
  Kevin: If you don't, I am gonna need to know now, or else I won't be able to find someone else in time.
  Winston: Can I let you know tomorrow by 6?
  Daphne: I can be there at 10 :)
  Kevin: are you sure? :)
  Daphne: 100%
  Winston: looks like you guys don't need me anymore :D
  Kevin: I'm sorry, Winston, I needed the 100% :)
  Winston: no problem, I get it
  Kevin: maybe next time ;)
  Kevin: Daphne, I pm'ed you to discuss the details
  Daphne: ok :)
target: Kevin is looking for one more person to greet the visitors from Greece, who arrive at 10 PM on Saturday. Alma is busy at that time. Winston is not sure, if will make it. Daphne is available and willing to go. Kevin sends Daphne a private message about the details.