chat_history: ["I'm looking forward to my best friend's surprise birthday party next week!", 'That sounds like so much fun! I love parties!', "I'm really happy about it- she's a great friend and she's turning 40, so it's a big one!"]
sys_response: Hey, I just had that one! What do you have planned?
situation: I'm looking forward to my best friend's surprise birthday party next week!