Wirelessly posted (BlackBerry: BlackBerry8530/5.0.0.601 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
Does EY offer any through-flights (i.e., single flight number) between your origin in Europe and Australia? If not, you would have to book Europe-AUH as one award, and AUH-Europe as a second award: AA's Europe-Australia awards do not permit connections in the Middle East, only in selected Asian airports.