We Know Your Mama Taught You Manners!
Manners seem to be slipping when it comes to showing property. When you learn that a scheduled appointment will run late or is canceled, have the good manners to let the listing agent know so that the seller can understand the change in circumstances.
In ShowingTime, there is a reschedule option that only takes a minute and it lets the listing agent know your appointment is not panning out.
Your Mama would be proud that you are using your good manners!