It has to be a windy day, and you have to go near Shade's gym there you can catch/defeat the drifloon there, and he will say "omg you saved me!" then you go back to his mom and she says "he's still stuck", so then you go and search in the Jasper ward and there is a Scolipede Gang there, defeat them, and save him again, and his mom will give you a sticker!