[Ethan's eyes narrow in confusion.] But how could you be the trainers? [He shoots glances at Red as he speaks.] He doesn't fight for you...does he?

I've looked in all the boxes nearby [including some owned by various shopkeepers. He's gotten screamed at for suspected shoplifting more than once today.]. Oh! Maybe you could sniff him out. I have his poke ball still, if that can help you get a fix on him.