system
grateful: I was waiting for the bus this morning to go to work and realized I didn't have any change. Someone offered to pay for my bus fair.
gpt
I realized this morning when I was waiting for the bus that I forgot to bring any change. Someone ended up paying for my bus ride!
gpt
Well that is very lucky for you. People are nice!
gpt
Yes, I was very happy about it. There are still nice people in this world. 
gpt
Yes there are. Most of the people are very nice.