conversations.from: human
conversations.value: I'm stuck on this math problem: James decides to go to prom with Susan.  He pays for everything.  The tickets cost $100 each.  Dinner is $120.  He leaves a 30% tip.  He also charters a limo for 6 hours that cost $80 per hour.  How much did it all cost?
  Can you help?
conversations.from: assistant
conversations.value: He paid 100*2=$200 for tickets
  The tip for dinner was $120*.3=$36
  So he paid $120+$36=$156 for dinner
  The limo cost $80*6=$480
  In total he paid $200+$156+$480=$836