public static void DeleteGuestCategoryById(int categoryID)
 {
     GuestCategoryService.DeleteGuestCategoryByCategoryID(categoryID);
 }
 public static void ModifyGuestCategory(GuestCategory guestCategory)
 {
     GuestCategoryService.ModifyGuestCategory(guestCategory);
 }
 public static void DeleteGuestCategory(GuestCategory guestCategory)
 {
     GuestCategoryService.DeleteGuestCategory(guestCategory);
 }