system
hopeful: I recently underwent surgery and radiation for breast cancer. The doctor said I should be fine. I'm very optimistic! 
human
I recently underwent surgery and radiation for breast cancer. I'm feeling optimistic because the doctor said everything went well!
gpt
I hope it turns out well!
human
Thank you! It was quite an ordeal, but I'm glad it's behind me and I can continue living my life!
gpt
It must be such a relief. I'm happy for ya.