Hi everyone..hope I am posting this in the right place. I have a ticket on CO to YUL (coming in from the USA)and then a separate ticket on AC from YUL to FRA. Is there a way CO can link to my AC ticket so that I can check my bags straight through to FRA or will I need to treat these as two separate trips? Reason I ask is I have only two hours between arrival in YUL and the flight to FRA.

Any ideas or information would be greatly appreciated.
FYI I am Star Alliance Silver if that makes any difference….