In my expierience…if you don’t ask, you won’t get.
You have to be pro-active, i was in a similar situation to you about a year ago, i had been practicing non stop for a year… but i was still playing to my self in my bedroom.
i took it upon my self to get out their and find my self an opertunity. a few mixtapes/emails/letters later, i have my own residancy at a loacl club 3-4 times a week. i host my own club night, and i recently played a 5-6 hour club set for the UK clothing chain “TopShop” in one of their city stores.
so if i was you, i would just go and talk too who ever is organising the event, tell em what you do, what your all about, sell your self… like i said , if you don’t ask you won’t get .
good luck, and let us know how it goes 🙂