Dear [Recipient's Name], I am writing this letter to sincerely apologize for missing our scheduled appointment on [Date] at [Time]. I deeply regret any inconvenience or disruption caused by my absence, and I understand the importance of honoring commitments. I understand that missing the appointment has inconvenienced you and may have caused delays or rescheduling of your plans. Please accept my utmost apologies for any disruption caused to your schedule. I genuinely value your time and the opportunity to meet with you, and I am truly sorry for having missed this chance to discuss [purpose of the appointment]. I would like to explain the circumstances that led to my inability to attend the appointment. [Explain the circumstances briefly, such as unexpected personal matters, an unavoidable conflict, or any other valid reason]. However, I understand that this explanation does not excuse my absence, and I take full responsibility for failing to prioritize our appointment appropriately. I assure you that such an incident will not happen again in the future. To prevent any reoccurrence, I will implement better time management strategies, set multiple reminders, and ensure proper scheduling to avoid missing any future commitments. If you are willing to reschedule our appointment, I would greatly appreciate the opportunity to meet with you at your convenience. I am fully committed to rectifying this situation and addressing any concerns or matters that were to be discussed during our initial appointment. I value your time and expertise and understand the importance of our meeting. Once again, I extend my deepest apologies for my absence and for any inconvenience caused. You're understanding and forgiveness would mean a lot to me. Please do not hesitate to contact me at [Your Phone Number] or [Your Email Address] to reschedule the appointment or discuss any concerns you may have. Thank you for your patience, and I truly look forward to the possibility of meeting and resolving any outstanding matters. Sincerely, [Your Name] [Your Address] [City, State, ZIP] [Date]