'We will be doing business again, and I will be recommending you to people! Awsome job! Thanks'
'Easy to order, pricing was reasonable and flowers are beautiful!'
'I have not seen the flowers but I understand they are beautiful. Hopefully my friends will send me a picture of them soon. Thanks for helping brighten their day for me.'
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.