Andrew Hall
456, X Street, Y Avenue,
Philadelphia, PA-19103
(123) 456-7890
[Subject: Normally bold, summarizes the intention of the letter] -Optional-
Dear Andrew Hall,
I want to cancel my appointment with you which was scheduled for May 9, at 11:00 a.m. This is because I was unable to gather all the information which was required to discuss the request for rezoning in my neighborhood. I will need around two more months to be prepared to discuss this idea. I am working together with many of neighbors and someone from amongst us will get in touch with you as quickly as we are ready.
Sincerely,
Yakov