Theo could have rolled his eyes, if he'd been one to do so. Gryffindors! Seriously why were they trying to play games when they could not? It was easier when the weren't trying because at least then you knew what they were talking about.
Of course outwardly he only smiled. "Miss McKinnon, why did you not just say so from the start?" he asked, not saying that he knew far too many people who didn't respect Dumbledore at all. At least not in her Gryffindorish way of most likely believing respect to mean like and admiration. Wariness, awareness and respect of his power, certainly, but respect for his person? Now that was another thing entirely.
"I know my wife promised you our assistance should you need it, and naturally I will honour her promise by looking into the matter and see what I can find out."