Oliver laughed, lightly scratching the back of his neck. "Ah, same old same old with me and Flint. You know...Quidditch, house rivalry and all that stuff. Got him quite mad at me." he said and then laughed softly as he poured himself a glass of juice as well. "Apart from that the ball was really nice though, I liked it. I didn't have a date either, but there were a lot of people without a date I think." he said with a nod.
"Oh...Yeah, Harry." he chuckled softly and then smiled at Luna. "Really? That guy from Harry's year?" he tilted his head to the side a bit. Oh yeah, he did remember Neville Harry and Snape had mentioned him on several occasions.
"that's great if you ask me. You could...ask him to go for a walk with you, show him the Thestrals maybe?"