Well Zack isn't sure if he should take that as a good thing or an okay thing so he just pets her once more before letting his own pokemon go in their pokeballs. It's going to be a lot easier that way when riding a horse, at least he thinks so.

"Noted, any other words of advice for a first time horse rider?"

Zack isn't nervous but he doesn't want to ruin Dust in anyway for Geddoe.