chat_history: ['My son just graduated from high school! He has worked so hard, and he even earned a scholarship.', "Congratulations to you both!  What's he going to study in college?", 'Thank you! He is going to study Computer Science!']
sys_response: That's a great degree for the future and getting a job.  Good luck to him.
situation: My son just graduated from high school! He has worked so hard, and he even earned a scholarship.