chat_history: ['My daughter is finally fully potty trained!', 'Good for her! She must be quite proud of herself.', 'Yes, I am very happy as well! No more buying diapers haha']
sys_response: Oh gosh. Diapers are really expensive. I forget all about that.
situation: My daughter is finally potty trained! I'm so happy and will save lots of money not buying diapers.