Know the answer should be obvious from the thread title, but I can't seem to figure this out.
Trying to reserve DXB-AMM as part of a ticketed DONE5 next April 17th. Availability on the route looks fairly slim, but we thought we had a winner on this day. EF shows J9 C9 D9 on RJ 613. However, the AA RTW desk can't see any availability. Before they could find one seat, but not two together.

What's going on? Does EF not work for Royal Jordanian?