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