text: Meryl: Hi John! how are you doing?
  John: thanks
  John: quite well, you?
  Meryl: me too, any plans for Saturday night?
  John: no, not really
  Meryl: a friend of mine offered me some free ticket to Carnegie Hall
  John: no way! really?
  Meryl: yes, would you like to join?
  John: sure, I've never been there, it's quite expensive normally
  Meryl: it is!
  John: what are they playing and what time?
  Meryl: 6PM, Stravinsky
  John: I really like Russian music
  John: I'm really happy
  Meryl: I have another 4 tickets, so if you want to take anybody, let me know
  John: great I will
  Meryl: I'll write you the details on Friday
  John: should I wear a suit?
  Meryl: I don't think so
  Meryl: maybe just something a bit decent only
  John: haha, ok
target: Meryl got some free tickets to Carnegie Hall for Stravinsky at 6 pm. John is happy to join and he might take someone too. They should dress decent.