This is an interesting question. When I don't know the answer to a question, I just tell them I don't know the answer to the question. And I would tell them that I can definitely get them the answer. Because I'd rather be honest and tell them that I don't know, and make them understand that I'm vigilant about getting that answer, as opposed to making something up or telling them I do know and I really don't, or giving them false or misleading information or anything like that. So I think that with this question and this scenario, just honesty is the best answer.