Qatar do a fifth freedom from Bangkok into Hanoi in the afternoon, it is lie flat, so you might find a QR sale via doha and then bkk, people staying on to Hanoi wait on the airplane, and *siderant* then those exiting they have a painfully slow paper check of each person disembarking at end of jet bridge so a large queue forms exiting and in the jet bridge, I swear the guy checking them off isn't familiar for the lexical order of A-Z so scans the whole manifest for each and every passenger from top to bottom.