I've got a pretty simple question, but haven't had any luck getting someone on the phone at Amtrak to ask.

I made a single reservation, one way, Business Class, for my dad and I on the Coast Starlight, from Emeryville CA to Oxnard CA.

A couple places on Amtrak's site say Biz class seats are assigned, but nothing says how they're assigned, and I don't see any seat numbers.

I just want to make sure my dad and I are sitting together for the trip.

Any thoughts/advice?

Thanks.

One other side question.. my dad likes to complain about being "claustrophobic" (not a diagnosed medical issue). Am I right in assuming that two biz seats would give him more breathing room and space than a roomette?