I think you are probably looking for this outfit:
http://www.pilotcareercenter.com
They do Cathay interview prep and I BELIEVE (may be incorrect) have people in YYZ and YVR that can do it. If not, they offer the service via phone too.
I used them for another company prep, very, very thorough and useful, obviously people get hired without using such services but I found it money well spent. They take great care to make sure the prep is the very latest info, as collected from recent interviewees...
cheers.