I had a message from CO today that said that there have been changes to the flight schedule for the week of Nov 1. The thing is that they didn't specify a flight or date. I don't remeber buying a flight for this week, but why else would they call me?

If I do have a flight for that week, I have lost all records of it, and so don't know what to ask when I call. I know how ticked they get when I call not knowing my confirmation number or flight numbers, so how do I ask for info when I don't even know where I am going, or what dates. Can they look up my name to see if I am on any flights in the future?