chat_history: ['Last night was quite a bummer.', 'I am sorry to hear that. Why was it a bummer?', "I was planning on going to a concert but ended up not going at the last minute because I didn't want to go by myself. I feel like I'm going to regret not going."]
sys_response: That really stinks. I bet you felt really lonely and filled my regret.
situation: I was planning on going to a concert last night but I didn't go because I ended up not wanting to go by myself. I feel like I'm going to regret not going.