chat_history: ['I went to a restaurant and ordered some pizza', 'what kind of pizza?', 'Bacon and sausage pizza.  Unfortunately, it also had a cockroach crawling across it when I picked it up']
sys_response: what!! i hope u got your money back
situation: I went to a restaurant and ordered some pizza.  When I received the pizza, a cockroach crawled across one of the slices