The next town... that's Cherrygrove, right? Great work, Pinkie! You'll be here in Goldenrod sooner than you know it.

As for your Pokemon... From what I can tell, it's because your Boink is a Psychic Type Pokemon, so he can talk to you with his mind. Just like my Starswirl. Nibbles can't do that, so she can't tell you. But I wouldn't worry too much. As long as you treat her right she should be okay. And if you run into trouble you've always got Fluttershy to talk to!