Since she had been Lucario's trainer for sometime now, she was Oak's temporary assistant.
"The boy is coming." Lucario notified her telepathically. He turned, and looked at her. He never went in his poke ball, and she never made him. It was Katrina's first time introducing a new trainer to his pokemon for the first time. She would accompany him for the start of the journey, but not long.
"That's a very nice everything you have there. It would be a shame if something were to happen to it." ~ Honeydew/Simon Lane, of the Yogscast.