Something weird is going on with QR bookings. I have been trying to book on aa.com an itinerary in business that involves QR connecting flights from Saudi. Every time I try, I get to the payment part on aa.com and instead of completing the booking it comes back with a system trouble, try again later message. I called up the AA phone line. They said that they weren't seeing QR flights in premium class that were bookable. I went to the QR booking page, entered the same cities and flexible dates. It came back and said there were no flights available for about a 10 day period. Later I tried and it gave a few flights possible. When trying to book individual segments between RUH and DOH it showed more possible than for the longer booking. Really weird and time consuming frustration dealing with this.