chat_history: ['i recently lost my dog, he died.  i had him for 12 years.', 'Oh no. I am so sorry to hear that!', 'thank you. he was the sweetest thing.']
sys_response: Dogs are with us for such a short amount of time. Kinda wish they lived as long as us.
situation: i recently lost my dog.  i had him for 12 years.