In town, the group arrives at an herbal shop to purchase their medicine. Entering, they find an old woman grinding herbs. When they request to buy some Potions and Antidotes, she offers them a snakeroot that will cure insomnia and grow hair on their nose and tongue. The old woman is then scolded by the same girl who helped Meowth, her granddaughter, named Cassandra. Brock immediately falls for her, trying to make small talk about how he intends to be the best breeder, but Cassandra parlays the conversation into a Pokémon battle, which Ash accepts. At the battle, Cassandra sends out her Paras, while Pikachu leads off for Ash. However, before the battle, Pikachu tries to make friendly talk in a show of sportsmanship, but it causes Paras to cower in fear. Meanwhile, Team Rocket is spying on the battle, intent on stealing Pikachu; Meowth is distracted by Cassandra, as he intends to repay her for healing him.
(Source: Bulbapedia)