chat_history: ['I love to play lottery scratch offs!   I once won 4000 on one.', 'Wow, lucky you. I play those once in a year only', 'I can understand that, as I usually dont have the money to play to very often.  I couldnt wait to go cash it in.']
sys_response: I do not play too much because if I do not win, I feel it is a waste of money.
situation: I won 4000 on a scratchoff  lottery ticket one day.   I couldnt wait to go cash it in.