January 18, 2021
[City], [State] [Zip Code]
I want to apologize to you for missing the meeting that you had scheduled for [Date] at [Time]. I was unable to make it to the meeting because [ ... insert reason ... ].
I am disappointed that I missed the meeting, and I want to assure you that I am committed to not letting it happen again. I realize that you have a very busy schedule, and that it can be frustrating when everyone does not go to meetings.
I have been talking with [Name], who was at the meeting, and they have brought me up to date so that I am familiar with what I missed. Please, feel free to let me know if you would like to discuss this further.
Thank you for understanding.