chat_history: ['So this weekend Im going to do a marathon. I have worked very hard to get myself ready for it', "That's so exciting! Have you run a marathon before?", 'I never have. I think all this time I been practicing will pay off.']
sys_response: That's good, I hope you do well! How did you prepare?
situation: This weekend I will be in a marathon. I have worked so hard these past few months for it.