Vivian is getting the sense that this Dementor-killing business is a bigger deal than she thought it was. She's not very clear on how impressive magical achievements are when they fall anywhere between "did well in class" and "defeated a literal Evil Wizard in a duel". But everyone seems very impressed, so she's not going to mention her ignorance.

"Well, I think I'm going to try to have another of these in two weeks," she says instead. "If you're interested, write your name down on the parchment by the cakes; I'll make sure you get the details when I'm all set up."