Moderator, Air Canada; FlyerTalk Evangelist
Join Date: Feb 2015
Location: YYC
Programs: AC SE MM, FB Plat, WS Plat, BA Silver, Marriott Plat, Hilton Gold, Accor Gold
Posts: 18,947
What travel portal does your employer use? Does it have a link to a 3rd party site where you could look it up?
You could also call AC, tell them what flights you're on and they can give you your booking reference. Hold time could be long though.
Or do you have any segments on another airline, such as UA, that might display the AC PNR on their website when you look up the booking with them?