Originally Posted by
BravoZulu
Just as an added measure, you may want to call DL to link your two PNRs. No, it does not become one, but DL will include a note in each PNR to improve the likelihood that you will travel together. Absent this, there is no relationship between the party of 3 and the party of 1.
I did this with Delta when the reservations were made in mid-October. Hasn't helped much as of yet.