In this article, we discuss how to write a conformational letter, look at sample templates for formal and informal confirmation letters and share some tips. I am writing to confirm my start date.Hi (Recipient's name), My name is (your name), and I am emailing to ask whether you have any internship opportunities at (company name). An internship completion letter is a formal acknowledgment that an intern has fulfilled the terms of their internship. Letter Requirements: This letter must be printed on official letterhead of the internship provider. Letter Requirements: This letter must be printed on official letterhead of the internship provider. I am writing to confirm my start date. When accepting an internship (or job) offer via email, you have the opportunity to send a well thought out message along with your signed letter. The following template may be sent to the employer for guidance. Please provide an official letter from the employer verifying the internship.