system
grateful: I was in line paying for groceries when I found out I was $4 short. Someone behind me volunteered to pay the rest for me.
gpt
I had a very nice stranger do something for me today at the grocery store.
human
Oh really? What did they do?
gpt
I was $4 short on my grocery bill and they stepped in and paid for it. I was very thankful!
human
Wow! That was really nice of them.