Don't have the exact language but this historic forum post from Sopwith should just about cover it
https://www.flyertalk.com/forum/32354900-post58.html
PREAMBLE
Welcome to Air Canada, recently ranked by Skytrax as the least awful international airline in North America for the sixth year in the past eight, but rated below average and dead last in its class by J.D Powers. Regardless of what our customers think, or what the pollsters think they think, we proudly remain the airline where we’re not happy until you’re not happy.
The following is a plain English synopsis of the contract between you and Air Canada. It is presented in this form to help you understand, not necessarily why we do what we do, but what we do and what to expect when you travel with AC.
It is our sincere intent to get you to your final destination at some time in the future. Most of the time. The time at which you arrive there is up to us, not you. But please understand that there is no actual legally enforceable contract that requires us to do so, even though you bought a ticket describing with very specific details where, when and how you will travel.