I was looking at whether to book First Class or Business Class seats on a RJX train.

Business Class is supposed to be the top option, but it seems like the privacy for 2 people traveling together is much worse. I don't want to sit staring at 1-2 strangers for the entire trip. In first class you can get two adjacent seats that are not facing other strangers.

Is there a way to book all 4 or 3 seats in a compartment for 2 people? I can't find an obvious way on the OBB site or whether booking two seats under the same name would cause some problem.