Oh okay thats neat on with the AGR points I didn't know that. Although it makes sense.
Just as an FYI, that's how AGR points work anytime you book more than one room on a single reservation. If one books two roomettes, the points for the first room will go to the first person listed on the res, the points for the second room will go to the second person listed on the res.
So for example, if one had a family of 4 and decided to get two roomettes, make sure that the first and second person on the reservation have AGR numbers. And position is critical, if for example both mom and dad have an AGR number, but dad is listed first and mom is listed either third or last and the kids have no AGR numbers, then the points on the second room would be lost. No one will get them.
Of course there is no good reason not to simply enroll the entire family anyhow, but still when booking more than one room be careful that you list the passengers in the order that you want the points to be awarded.