chat_history: ["I don't play the lottery, ever, but a friend recently gave me a scratch off ticket.", 'I buy those like twice a year and never win.', 'I won $200!']
sys_response: Wow! That's awesome! What did you do with it?
situation: I recently hit a $200 scratch off lottery ticket.  The ticket was given to me by a friend.  I was super stoked.