[Your letterhead, if desired; if not, your return address]
[Date of letter-month, day, and year]
[Recipient's first and last names]
[Street or P.O. box address]
[City, State ZIP code]
Dear [recipient's name]:
I hereby give permission to my employee, Bill Jones, to travel from Charlotte, North Carolina to Atlanta, Georgia, and back to Charlotte, from January 17, 2010 to January 20, 2010. I understand that Bill will be taking three days of paid vacation time during this trip.
Please contact me, should you have questions or need additional information.
[Sender's first and last names]