I am researching trips from PGH-MSP for the fall. I want to be in a roomette to CHI and, of course, coach, to MSP. For whatever reason I am only able to get either coach or roomette fares through; it will not allow me to choose rooomette to CHI and coach from there to MSP. Not only that, but it gives me two fares for the same date of travel. I called Amtrak and the agent tried it herself and found the same thing but, of course, could not explain it though she could make the proper reservation through her system. Thought perhaps the braintrust here might have thoughts on this, or have experienced it.