text: Charles: Where should we meet?
  Frank: I'm good, already on the bus
  Charles: cool! Peter, Stacy?
  Peter: I can meet you halfway, is Euston ok?
  Charles: ok, Stacy? you coming?
  Stacy: nope, sorry, emergency at work, will talk later
target: Frank is on the bus. Peter can meet the guys halfway, at Euston. Stacy is not coming because she has an emergency at work. 