Haruka

Ramona is a character of the day who appeared in The Stolen Stones! (EP192). She and her younger brother Keegan run a courier business with the help of their Arcanine.

Ash and his friends first met Ramona when she and Keegan saved them from a rock-slide with the help of their Arcanine. Brock was impressed that Ramona could control a tough Pokémon so easily and began flirting with her immediately after.

Ramona and her brother were traveling to a city near Olivine City to deliver Fire Stones, which were to be handed out as prizes for a Fire-type Pokémon competition. However, the Fire Stones were stolen by Team Rocket. To recover the stones, Ramona, Brock, and Misty went after James, while Ash and Keegan pursued Jessie. However, Ramona's group fell in a pitfall trap and remained there until Brock used his Onix to get them out.

They soon found Team Rocket again and Ramona commanded her two Arcanine to use Fire Spin on their balloon, sending them crashing to the ground. Ramona got the Fire Stones back and she and Keegan delivered them to the competition headquarters on time.

(Source: Bulbapedia)