Like nearly every form of travel these days you can reserve Amtrak tickets on line. I reserved on-line the sleeping accommodations early for the late June trip to Seattle and Pondfilk because I have learned they sell out early. Unfortunately, the on-line reservation system is not good at reserving a round trip ticket for one person and sharing accommodations with a second person on the way back. Of course, that is exactly the way Peter and I want to travel.
So its on to the Amtrak telephone system to modify the reservation. In remarkably short order, I get a real human being, Nancy the Amtrak lady. Nancy got the tickets squared away so that Peter can fly to Seattle and ride the train home. Smart lady, Nancy. I will be riding the train both ways, testing out two different kinds of sleeping accommodations in the process.