I knew this was a problem, and resolved the problem after four very lengthy phone calls to both airlines. I booked this flight using United miles and while United’s system showed that I was confirmed on the flight, when I called Air China to reserve my seat, they claimed that they could not see my reservation. Air China is operating the 777-300ER on this flight which features their latest hard products in all three classes: Forbidden Pavilion (First Class), Capital Pavilion (Business Class), and Economy.
Flying into a Star Alliance hub, passengers can easily connect to tons of domestic destinations via United. It was only a bit over a year ago when Air China first launched the Beijing to Houston service and I must say it makes sense for them.