If your Amtrak ticket doesn't have a seat number, it typically means you have an unreserved or flexible ticket. This allows you to board the train and choose any available seat in the unreserved seating areas. It's common on shorter routes or when flexibility is needed in your travel plans. When you board, find an open seat and make yourself comfortable. If you prefer a reserved seat,... https://reservationsus.com/are-there-sleeper-cars-on-the-train-from-chicago-to-seattle/