chat_history: ['One time I bought a scratch lottery ticket and won $20!', "That's awesome! It would be amazing to win a million one day. One can dream.", 'Yup, I am going to buy another one just because of you! I hope I win!']
sys_response: That's great. I hope you do! Maybe this time you can get $40. But gamble only in moderation!
situation: One time I bought a scratch lottery ticket and won $20!