There is a hotel block for guests at the link below. Should anyone prefer to call the hotel directly to book their room, they can simply say they would like a room from the Fina/Comoss Room Block.
Hotel
Selinsgrove Inn
214 North Market Street, Selinsgrove, PA 17870
Hotel
Fairfield by Marriott Inn & Suites Selinsgrove
6 Susquehanna Valley Mall Drive, Selinsgrove, PA 17870