help with trainer battle

[Pokemonguy122]

i added a trainer with a battle script in pokemon emerald but when i talk to him in game he just says the after battle text instead of
starting the battle. this is what i used\

#dynamic 0x368800
#org @Start
'-----------------------------------
trainerbattle 0x0 0x2B8 0x0 @intro @defeat
msgbox @afterwards 0x6
release
end

#org @intro
= Hey, Trainer!. Im up here training. Lets battle!

#org @defeat
= Goodjob. I'll train harder next time[.]

#org @afterwards
= Hey, again. Trainer!


any help would be appreciated