Dear [Supervisor/Manager/Colleague], I am writing this letter to formally request the cancellation of my previously approved leave of absence, which was scheduled from [start date] to [end date]. Unfortunately, due to unforeseen circumstances, I will not be able to take the leave as planned. However, I would like to reschedule the leave to a later date. I apologize for any inconvenience this may cause to you and the team. I understand that leave arrangements require careful planning and coordination, and I deeply regret any disruption caused by this sudden change. Furthermore, I assure you that I have considered this decision thoroughly and believe it is in the best interest of both the company and me to reschedule the leave. I kindly request your understanding and support in rescheduling my leave for an alternative timeframe. Furthermore, I propose the following dates as potential options for the rescheduled leave: [provide a few alternative dates here]. These dates are based on my assessment of the work schedule and project commitments, while also considering the availability of colleagues. Additionally, I would be more than willing to discuss and finalize the rescheduled leave dates with you or any other relevant personnel to ensure a smooth transition and minimal disruption to the team. Please let me know if you have any preferred dates or if you would like to arrange a meeting to discuss this further. Once again, I sincerely apologize for any inconvenience caused by this request and appreciate your understanding and flexibility. I am committed to fulfilling my responsibilities and ensuring a seamless transition during the rescheduled leave period. Thank you for considering this request and for your continued support. I look forward to addressing any concerns or questions you may have, and I am confident that together, we can find a suitable resolution for this matter. Yours sincerely, [Your Name] [Your Designation/Position] [Your Contact Information]