'The lilly we ordered was beautiful. Was one that was well started and will be a lasting memorial gift. Thanks.'
'I am very pleased with the service I received from your company.'
'Delivery was at martini time - a request I had asked. Thank you so much. The beautiful flowers and smiley face gave great cheer to my dear friend Nancy.'
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.