'Thank you so much for the awesome balloon bouqet. It was a huge hit!!'
'The flowers delivered to my fathers memorial were beautiful. Thank you for delivering to the grave side service on a Saturday. A wonderful job and much appreciated.'
'The Flower arrangement was beautiful. Thank you so much for following the instructions. Your service was Great!!'
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.