More often than not they are not trained. They are just a store clerk and will put on you what they THINK looks good.
If they don't have a cosmetology degree they can just hand over the goods so you can try them yourself.
I would not try or buy passion pink # 66 because they are told to push its sale.
If you go to a counter pie be assertive in trying the colors you want.
There are many shades of corals and browns that are not funky.