What should your appointment request letter include? The forms are templates and can be modified to fit your circumstances.Again, thank you. Sincerely,. Manage meeting requests like a pro with our indepth guide to writing the best meeting request emails. I am writing to request an appointment with you at your earliest convenience. These emails are needed to arrange meetings and upcoming appointments with clients, managers, supervisors, or business partners. Our mission is to provide our applicants excellent customer service and timely and accurate permits.