chat_history: ["My brother recently proposed to his girlfriend, I'm really happy for him. :)", 'Oh that is fantastic! I bet your brother was pretty happy too.', "Yeah, he gave her my grandmothers rings, since they were nice and we had them available. He's 23 so he's trying to save money, but still wanted her to have something nice."]
sys_response: That is very sweet. I think they will have a happy and lasting marriage.
situation: My brother recently proposed to his girlfriend. They are already talking about when they want to have the wedding, and making a few plans for what they want it to be like.