Fly to Saudi Arabia, the ticket is Qatar Airways e-ticket. I need to go to Doha and then transfer to Dammam. Please tell me the specific process. (transfer, luggage)

Go wherever you take off, then find the counter of Qatar Airways, change the boarding sign and check your luggage. The luggage goes straight to Dammam, and you don't have to pick it up when you transfer. There are two boarding passes, one for Beijing and the other for Doha. When you get on the plane and arrive in Doha, after you get off, find a transfer, this sign, and queue up to enter. There should be many people from China on the plane, so it's no problem to follow them, or ask others. Generally, a little girl or someone who looks like a boss knows that because she often flies, this way suits you best, and people will tell you. No charge, ask more questions. If you can't find someone from China, ask the airport police, show your card, and they will usually point it out to you. Find the boarding gate, OK, just wait for the plane, you can go directly to Dammam. Someone answered the plane.