chat_history: ["My brother got a custom-made bowling ball, and ever since then he's been killing the game! It is awesome to see.", 'Sounds impressive, does he mainly play for fun or is he in competitions?', "He's on his high school bowling team, but I think he mainly plays for fun. It's kind of cool seeing him get so much better over time."]
sys_response: Very nice, I would be proud too.
situation: My brother bought a custom bowling ball and ever since he got it, he's been doing amazing!