It is pretty routine for them to just post "No Availability" which looks like "Booked Solid" when this stuff occurs. Yheir website is so archaic, idiotic, confusing... (You get the picture)... I don't think the Commodore 64 on which it runs can handle the extra load.Also mid-March is spring break for like a thousand colleges and even more K-12 schools, could it be the trains just got booked up? I reserved really early
Believe me when I say that being a member of AGW and calling THEIR number is the only way to go. Sure, use www.juckins.net for a trove of great information.
https://juckins.net/amtrak_routes/amtrak_routes.php MAPS!!!
https://juckins.net/amtrak_timetables/archive/home.php TIMETABLES!!!
to get timetables for your desired routes, do a little plotting, then call AGW and ax them (as my Cajun Grandma used to say) what's the best deal.
I don't work for them or get paid by them, I just would like everyone to know of the benefits.