chat_history: ['Today I was looking through my childhood photos and writings, it made me a little emotional and nostalgic.', 'Did you have a good childhood? You must miss a lot of things.', 'I think I had a good childhood. I love that I have many photos that I ca look back on.']
sys_response: Yes. Nostalgia is unavoidable when we look back on our youth.
situation: I went through my childhood photos and items I was kind of emotional and nostalgic.