'I was very pleased with your service, will use you again.'
'Excellent service. Thank you very much indeed. Yes i will use your services when the need arises in the future'
'Flowers were as advertised...very beautiful. And they were delivered on time. Thank you for adding comfort to my friend's loss of his father through your wonderful arrangement.'
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.