A peasant and a magician team up to find a magic flute that grants wishes.

You should check out the formula page on this site. For a compelling story your character should be forced into this scenario. You need to add an inciting incident that pushes them into needing this flute. Also i would pick a single character to follow rather than two. It's generally easier. I'm thinking of something like this, which may not be anywhere near what you're intending but will hopefully get my point across:

When a peasant is wrongfully accused of theft, he must enlist the help of the town magician to find a wosh granting flute to clear his name.