'The flowers were very nice. One exception three carnations were falling off of the base.'
'Thank you so much did a amazing job thank you'
'It's is the first time I use this company and I have to tell you service was extraordinary. Thank you from the bottom of my heart it meant a lot to me that the arrangement get delivered on time.'
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.