system
grateful: My computer broke and I cant afford a new one right now. My friend gave me his old one for free. I am so thankful for that.
gpt
My friend gave me his old computer because mine broke. That was so nice of him considering I cant afford one right now.
human
That is very kind. Now many people like that.
gpt
I know I couldnt believe it. I am so thankful. 
human
You will have to return the favor sometime. 