Hi experts,
When i search on Jal site for LAX - SGN flight, it shows JL61 for LAX-NRT , then JL759 for NRT -SGN.
Since I dont have enought miles to book one whole trip, I booked JL 61 and JL 759 separately using other airlines miles.

Both flight are JAL metals, do they allow to merge to link the reservation together for my convience (i.e boading pass, luggage trasfer, delay issue etc...)? thank you!