This info was obtained from TV.com on this page:
http://www.tv.com/pok%E9mon/battling-a-cute-drama!/episode/1264397/summary.html#.
Episode Summary: Ash and friends stop in a town on the way to Snowpoint City. There they meet a girl who only likes cute Pokémon. After she insults Dawn's Piplup, Dawn challenges her to a battle.
Fun Facts: Ash, Dawn, and Brock receive winter clothes in this episode. Ash and Brock get jackets that are similar to Lucas' from Platinum, while Dawn receives the entire outfit of her game counterpart in Platinum, minus the new pink hair clips. Dawn is also the first person to have traveled with Ash to receive a new outfit while still traveling with him.
Interesting right?
Thanks for reading!