[Elza breathes a low laugh.] Just Natalia... All right, if you insist.

[He won't call her princess or lady or anything, but even a miss... He's used to being polite. Besides that, when he uses a title it almost ends up sounding like a pet name whoops it's the flirty thing.]

If it was a request like asking me out to tea, I don't think it'd be rude at all. [Teasing aside...] But I suppose it's something else, hm?