Jessica is a Pokémon Stylist who works under the tutelage of her master, Barry. She was assigned to care for a Furfrou that did not approve of her. She met Ash and his friends when this Furfrou bumped into Bonnie and injured her. Later in the episode, her Furfrou was captured and Jessica brought up the courage to save Furfrou from the cage it was held captive in by Team Rocket, finally earning its respect. At the end of the episode, Jessica gave Furfrou a trim.

(Source: Bulbapedia)