The couple is planning a Nov. 2, 2012, ceremony in Cocoa Beach, Fla.
Kyri is the daughter of Bruce and Diane Lancaster, of Le Mars. Dan is the son of Gen and Gail Van Voorst, of Inwood.
Kyri graduated from Le Mars Community High School in 2004 and received her bachelor's degree from South Dakota State University in 2008. She then graduated with a master's degree in occupational therapy in 2010 from Midwestern University in Glendale, Ariz. She is currently working as an occupational therapist in the Cave Creek School District in Phoenix, Ariz.
Dan graduated from Netherlands Reformed Christian School in 2004 and received his bachelor's degree from South Dakota State University in 2008. He graduated from A. T. Still University in Mesa, Ariz., in 2011 with a doctorate in physical therapy. Dan is currently employed by Ideal Rehabilitation in Phoenix, Ariz.