'Suggestion - I would have loved to have seen a photo of the final delivery of flowers since I was unable to view them personally.'
'That was incredibly fast service. I hope the flowers are pretty Thank you'
'Left them at the front door as I asked. She received them without any problems two hours later. Well done, thank you!'
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.