In ExpertFlyer, I see 0 economy (X) and 0 business class (O) awards for LAX-CAN across November (CZ328 operates LAX-CAN on Sundays and Fridays).
However, I see 4, 5, or 8 first class award seats (F) for every flight.
I just called AAdvantage. It looks like they cannot book these first class awards. Maybe they are available only to China Southern Sky Pearl Club members. Anyone have any luck on this route? If it was working, it should price out at 110,000 AAdvantage miles + $133.20 each.