You can still start with the special RCI Reservations Page. It will check and see if a cancellation has opened up a room at the primary hotel. If not, you can call the Hilton Americas-Houston at 1-800-236-2905. The group name is “RCI 2018 International Convention & Trade Show,” and the group code is 1RC.
We have one of those “problems” that’s kind of a good thing. Our primary convention hotel is running low on rooms for some of the nights of convention. The overflow hotel is the Hilton Americas-Houston. It is adjacent to the convention center, and just across a green space from the main location, the Marriott Marquis Houston.