Hi Flyertalk experts, given that my RTW ticket is CAI-AMM, DOH-HKG, ..., I need to purchase a ticket AMM-DOH myself.
CAI-AMM is operated by RJ business, and I am planning to redeem AMM-DOH economy with Alaska miles (also operated by RJ). Given that both flights are operated by RJ, is it possible for me to request my luggage to check through DOH at CAI?