Join you as Mary, reply a text message to your friend Li Hua, thank him for the invitation, but you can’t go because of something busy this Saturday

Li Hua:

Hello, I’m glad you invited me to ***** this Saturday (invitation content: address, matters).

Unfortunately, before I received your invitation, I already had other arrangements for Saturday, and it was difficult to reschedule, so I couldn’t go to ***. I hope you can understand, it’s still very difficult. Your invitation. We'll get together again some time.

Have a great Saturday.

Mary

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