chat_history: ['Man I am stuffed.  I found a new pizza joint in town.', 'That is nice. Do you like a lot pizza?', 'Yeah I definitely like a lot of pizza.  This place had a all you can eat buffet.  I ate my fill of pizza!']
sys_response: You are lucky.
situation: I found a pizza joint in town that does a buffet.  Needless to say I left satisfied.