system
disappointed: I was hoping that my friend could make it to a special concert, but she cancelled on me last minute.
human
I wish my friend didn't cancel on me last minute, I was really hoping she could go with me to that special concert.
human
That's a shame. Is there someone else who can go with you? I'm available. LOL
human
Thanks for the offer! Yeah, she just unexpectedly told me that she had a work obligation to attend instead.
human
I'm sure she really wanted to go. Sometimes we have to make choices we don't like. My offer still stands. 
human
That's true. Thanks for reminding me about that.