'Service was outstanding and the flowers were just what I wanted and were beautiful. Thank you!'
'I wasn't able to attend this funeral but my family said the flowers arrived on time and that they were beautiful. Pink and white in a white handled basket just as it was described on your website. Thank you so much.'
'Thank you guys so much. I will be recommending my friends and family to you guys. Great job.'
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.