text: Ian: hi, I made a reservation at Fergie's, who's in?
  Courtney: Tom and me for sure
  Courtney: what time?
  Ian: 2:00pm but can change it to 1:30 pm
  Doris: We're going too but we will join you only for lunch
  Ian: ok
  Frank: So what time do we meet?
  Ian: 11 am? to take a walk and then lunch
  Courtney: 3 hours walk? with kids? I don't think so :)
  Frank: is 2 hours ok for you Courtney?
  Courtney: ok, let's try. how far is it from the parking to the lake and then back to the restaurant?
  Frank: like 4 km, more or less
  Courtney: ok, no problem
  Ian: let's meet around 12:00 
  Doris: ok we'll try to make it before 2pm
  Ian: leave your cars next to the castle, the other parking is very small
  Doris: ok thanks
target: Ian made a reservation at Fergie's for 2 pm. Courtney, Tom, Doris and Frank will join him. They will gather together at 12:00 to take a walk before lunch. Ian suggests to leave cars next to the castle, because the other parking is tiny.