1234, Main Street
Boston, MA 02123
08 April, 2005
<Recipient Address Goes Here>
Unfortunately I must reschedule our <meeting/appointment> on <original time and place>. <Reason(s) and explanation(s).>
By waiting <amount of time>, I feel our meeting will be much more valuable. I will call to reschedule a time to meet <time frame>. If you have any questions in the meantime, please don’t hesitate to call me at <phone number>.
Thank you for your patience and understanding.
encl: <List of enclosed items goes here>