I'm looking for something I read once. There was this girl who wanted a boy to love her or...

I'm looking for something I read once. There was this girl who wanted a boy to love her or to go to a dance with her or something but she wasn't very pretty. I think she went to go ask for a wish or something from this weird shop. Maybe that she wanted to be pretty. She was making her own dress for the dance and on the way to ask the boy her dress got ruined and he was super snobby but then the shop owner comes and tells her that that was the way she was beautiful. The end is she becomes a shop assistant there.