Maybe this could be an nice gift for your sister? If you're having trouble picking a fragrance, this one from Sisley could be what you're after.
From Cult Beauty
Sisley Paris Eau du Soir Eau de Parfum (Various Sizes) - 50ml
Perfumes Club
Eau Du Soir eau de parfum spray 50 ml
This product is also available at 2 unverified stores.