Harry Potter and the Goblet of Fire
Chapter 22 - The Unexpected Task
McGonagall announces the Yule Ball, which is opened by the four champions. Harry has to dance, so he needs a partner. First he asks Cho Chang, but she already goes with Cedric. Ron asks Fleur, but runs away immediately because it was an absurd question. Then Ron asks Hermione, but she has somebody too, although she doesn′t want to say who it is. Then Harry asks Parvati and she agrees. For Ron she proposes her sister from Ravenclaw.