chat_history: ['I won a trip to Washington D.C. a few years ago', 'and how was it? did you enjoy it?', 'I had a blast. I met people from all over the country, visited many historical sites, and learned a lot about how government works']
sys_response: and how was it? did you enjoy it?
situation: One time I took part in an essay contest. A few months later I found out that my essay was chosen and that I won a trip to Washington, D.C.