text: Ben: Where are you?
  Emma: at the rare of the bus
  Ben: why?
  Emma: there are some free seats here
  Emma: so I can have a nap even
  Ben: good idea
  Emma: when are we going to arrive to NY?
  Ben: around 4.30 PM
  Emma: if traffic is not crazy
  Ben: right, we will see
  Emma: could you come here and wake me up around 4.15?
  Ben: sure
  Emma: thanks!
  Ben: sleep well
  Emma: I'll try
target: Emma is about to take a nap in the back of the bus to New York. Ben and Emma will be there around 4.30 pm. Ben will wake Emma up 15 minutes prior to their arrival.