text: Sarah: What are you doing?
  Luke: Nothing special
  Sarah: Why dont you come with me tonight?
  Luke: Where to?
  Sarah: I am going to starbucks with my friends and you can also join
  Luke: Ok will glad to come along
  Sarah: Be at the main terminal sharp at 6pm
target: Luke will meet Sarah at the main terminal at 6 pm and they will go to Starbucks with her friends. 