"Quiero ambas faldas."
Traducción:I want both skirts.
sorry but if u say I would means quisiera(like uncertain) wish.. if u say will means thal you are going to take (for sure), in spanish "tomaré las dos" I want both skirts is the one and the only option xD,. and another thing: english is not a very polite language, so if u ask in a store u go direct and straight,. I want that... xD I hope it heps!, regards..