However these waves come in of brides where it's ALL about them. At least in their minds. They reschedule their tours 80 times, they book a tour and don't show up and never call or email. It's this attitude that our lives don't matter and we should just be here whenever they'd like us to be.
Short of asking them on the phone "Hey, are you actually going to show up, or are you going to waste 2 hours of my life on a Sunday afternoon that I could use doing something fun...?" there doesn't seem to be much I can do to prevent it. Which might be the most frustrating part of the whole ordeal.