You'll find design examples and text samples of a friendly reminder to simplify the creation of the perfect appointment confirmation email. 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." Then, clearly list the most important information about the booking. Below you can find an example letter and notes explaining its features. These notes also include some useful set phrases used in business letters. "Kind(est) regards," and "Warm(est) regards" fill a nice gap between formal and more intimate closings. Friendly Letter Closings. Use words and phrases from the Catholic Catechism to stress the importance of this step in the confirmand's journey of faith. I hope this email finds you well. One can also refer to "His Majesty The King" or "The King.