system
disappointed: I planned for a great vacation, then someone at work got sick so I couldn't go. 
human
I planned for a great vacation, then someone at work got sick so I couldn't go.
gpt
That is bad. Did you already made reservation and purchase airline tickets?
human
Luckily I was driving, and was able to cancel my hotel reservations. 
gpt
Good. There was no else that could replace the person sick?