chat_history: ['I was in total shock the night my fiance proposed to me at a concert.', 'That sounds like a great place to propose! How did it go?', 'They started playing one of our special songs and the next think I knew he was down on one knee. I said yes, of course!']
sys_response: That's so heartwarming! I hope your relationship works out very well!
situation: I have never been more shocked the night my fiance proposed to me. We were at a concert and during a special song he got down on one knee and asked me to marry him. Of course, I said yes!