[Your Name] [Your Address] [City, State, ZIP] [Email Address] [Phone Number] [Date] [Recipient's Name] [Recipient's Address] [City, State, ZIP] Subject: Cancellation/Rescheduling of Appointment Dear [Recipient's Name], I hope this letter finds you well. I am writing to inform you that due to unforeseen circumstances, I need to cancel/reschedule our appointment that was scheduled for [Date] at [Time]. I apologize for any inconvenience caused and sincerely request your understanding. If you have any specific appointment type variations, you may consider using the following variations or categories: 1. Medical Appointment Cancellation/Rescheduling: — Doctor Appointment Cancellation/Rescheduling — Dentist Appointment Cancellation/Rescheduling — Specialist Appointment Cancellation/Rescheduling — Therapy Session Appointment Cancellation/Rescheduling 2. Legal Appointment Cancellation/Rescheduling: — Lawyer Appointment Cancellation/Rescheduling — Court Appearance Cancellation/Rescheduling — Mediation/Arbitration Session Cancellation/Rescheduling 3. Business Appointment Cancellation/Rescheduling: — Client Meeting Cancellation/Rescheduling — Vendor/Supplier Meeting Cancellation/Rescheduling — Board/Shareholder Meeting Cancellation/Rescheduling [Please choose the relevant category from the list above or provide specific details about your appointment type.] I apologize for any inconvenience this may cause, and I highly appreciate your flexibility in accommodating this change. I understand the value of our scheduled appointment and assure you that I am committed to rescheduling it at the earliest convenience. Let's work together to find a new mutually agreeable date and time. To proceed with the rescheduling, I kindly request you to contact me at your earliest convenience via email or phone. Alternatively, if you require any further information or have any specific preferences regarding the new appointment date and time, please let me know, and I will do my best to accommodate them. Once again, I sincerely apologize for any inconvenience caused by this cancellation/rescheduling, and I genuinely appreciate your understanding. I look forward to hearing from you soon to finalize the revised appointment details. Thank you for your time and consideration. Best regards, [Your Name]