CV job help for restaurant?

so im stuck on writing about myself in the CV im producing, im 16 looking for a weekend position at a local restaurant as a food runner, i found out there were positions available and i got told to bring a cv in, but ive had no experience with working with food before. (my work experience was in topshop which i absolutely hated) so how can i write down about that as its not related to restaurant work? id also love to know what i need to write in my cv and how i could put down my interests, school experiences and make my summary sound good. thanks in advance, oh and any tips about being a food runner and what id expect on the first day would be much appreciated!