chat_history: ['I went to a concert last weekend and saved the tickets.', 'Are you keeping it as a souvenir?', 'I am, I plan to scrapbook it once I get the pictures back.']
sys_response: Nice, I do that sometimes with movie tickets if it's a great movie that I enjoed a lot.
situation: I keep a lot of random things to scrapbook. For instance I save tickets to concerts.