Veronica

“The words came out before Harry had quite got his tongue around them.
“Wangoballwime?”
“Sorry?” said Cho.
“D’you — d’you want to go to the ball with me?” said Harry.
Why did he have to go red now? Why?
“Oh!” said Cho, and she went red too. “Oh Harry, I’m really sorry,” and she truly looked it. “I’ve already said I’ll go with someone else.”
― J.K. Rowling, Harry Potter and the Goblet of Fire