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.
"I loved the engagement invites. Now i am buying the save the dates and wedding Invitations. I am really excited, can't wait to order! Thank you. monica!"
"Omg! I am so happy with my engagement cards!!!! The design is perfect for our rustic/vintage engagement party! You wont be disappointed!"