".. Inigo."

That's his name, probably. Unless that's just his way of saying 'yes'. (No, of course it's not.)

But still, he is so baffled by the sudden offer of a joke that his name does come out like that - sounding flabberghasted, just staring at her with an incredibly puzzled stare. He supposes the only polite thing to do here is to just say: "And.. sure..?"