"Horse?" Katniss had more than enough pelts and things, and even if she didn't she could always get some herself. But that was one word she hadn't heard much, or at all. There wasn't any use for them in the dystopian future. For all anyone knew, they were extinct. "What's that?"

He's being stupidly stubborn with his need to thank her, but fine. Let him. In some way, Katniss understands. She'd do the same thing.