[Karen listens to him and takes interest in the fact he's a botanist. She has some input as far as the air filtration goes, but there's a more pressing matter that makes her heart lurch. She can't imagine what he must feel like right now, trying to find his daughter in a place like this.]

I haven't seen any children here. Just teenagers. But if I find her, I'll be sure to get her to you right away.

[There's a part of her that wants to warn him she may not be here. But she can't, because she knows that he's likely already thinking it. And if she's not here, then where is she? The implications that come up because of that question make her frown.]

If you need help with any of the plants, I can do that too.