A simple brain teaser for you kids...

Miss Lily, Miss Jasmine and Miss Rose are three sisters.
They decide to open flower shops. They use a knack to promote their sister's flower shop. Each decide to sell the flower of their favourite sister's name.
A person goes to Miss Lily's shop and ask for lilies. But she says, " Sorry sir.. I sell only roses. You can find lilies in the shop next door."
So, friends tell me who is selling which flower?

Simple is it not?