system
proud: I used to smoke cigarette but for  1 year now I have not and I am very happy that I am different now
gpt
I had to stop after seeing a close friend die of lung cancer. 
human
Oh that is not good! I am sorry for your loss.
gpt
It's alright at least I am glad I am not going to die because of lung cancer :)
human
That is a interesting way of being positive i guess.
gpt
It is, I feel like I have my whole life ahead of me.