Three Trouble Makers

It was just suppose to be an easy supply mission for twins Luna and Ezra Bridger. Kanan and Hera told them to get the supplies they needed and get back to the Ghost. But fate had other plans for them when they run into a girl at the markets on Lothal who helps them get out of a jam. Who is this girl and could she be an ally?
Disclaimer: I don't on star wars rebels or any of the characters other than Lily my oc.