Join Date: Apr 2009
Location: Bye Delta
Programs: AA EXP, UA Silver, HH Diamond, IHG Plat, Hyatt Plat, Marriott Titanium, Nat'l EE, Avis PC, Hertz PC
Posts: 16,632
The PNRs can be linked, but not combined. Once this is done, an agent may be able to seat you together in EC. You will probably not be able to do it online.
Your companion will not be upgrade eligible. Only traveling passengers who have attained GM or higher are eligible for upgrades on award tickets.