chat_history: ["I've really wanted a Ford Excursion for a long time.", 'Interesting, those things are huge, Do they even make them any more?', "They haven't made them for quite a few years.  But I met a guy that just picked one up in the last few days!"]
sys_response: Do you have a large family, or do you just like the idea of a large SUV?
situation: I met a guy that had recently purchased an Excursion.  I want one of those vehicles!