chat_history: ['A close friend said she was having problems with her knee', 'Ouch!  Did she hurt it or is it a degenerative thing? I hope she can find help with physical therapy.', 'Hopefully she will see a doctor soon about it']
sys_response: Oh good.  Hopefully she'll try to fix it with physical therapy first.  Some doctors love to do surgery right away when its not necessary.  Recommend that she get a second opinion.  Hope she resolves it!
situation: A close friend said she was having problems with her knee.  I hope she goes to a doctor soon