You won't be able to dismiss this by usual means (escape or click button), but you can close it programatically based on user choices or actions.
"It was super easy to create my save the dates. They turned out to be just what I wanted. The quality is what I needed & fair for the price. I will definitely be coming back to purchase my wedding invitations soon!"
"Absolutely amazing! I originally was going to do a DIY Save the Date. I am glad I changed my mind. I could never have made something that looked this good."