How To Write A Formal Letter For Vacation Leave . A vacation leave request letter is a formal letter written by an employee to his or her employer to request for some time off from work. Make certain you have the correct name and contact information. How to draft a Leave For Vacation Letter to your boss? We provide a from www.pinterest.com This can be very simple, just type re: Kindly consider this request, sir. My husband and i are planning a vacation for the first time in five years.