Retirement ceremony for Master Sgt. Melissa Lewis Published Jan. 26, 2010 VANCE AIR FORCE BASE, Okla. -- Congratulations and good luck on your retirement Master Sgt. Melissa Lewis. Thank you for your service. Time in service: 20 years Retirement ceremony: 3 p.m., Friday, Feb. 5, at the Professional Development Center, Bldg. 455. A reception will follow the ceremony.