Subject: Apology for cancelling your dog walking service

Dear [Dog Walker],

I am writing to apologize for canceling our scheduled dog walking service on such short notice. I understand how important it is for your furry friend to get their daily exercise, and I feel terrible about letting you down.

I wanted to explain what happened. Unfortunately, I had some unexpected family concerns arise that required my immediate attention, and I was unable to make it to our scheduled appointment. I realize that this must have caused you inconvenience, and I am truly sorry.

Please know that I value our business relationship and I am committed to making sure that this does not happen again. In the future, I will ensure that I have alternative arrangements in place for any unforeseen circumstances that may prevent me from fulfilling our commitments.

Once again, I apologize for any inconvenience that this may have caused you and your dog. I hope that you can accept my apology and that we can continue to work together in the future.

Sincerely,

[Your Name]
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