May I Have This Dance? (Diall fanfiction)

Imagine trying to find one specific person out of hundreds that went to a party. They're already gone like the wind and you have to search out of EVERYONE in New York City. To make it harder, imagine that person was wearing a mask, and you can only identify them by their hair, delicious smelling cologne, and the taste of their lips.

Seems pretty impossible right? Well that's the extent Demi Lovato has to go through if she wants to find her masked prince charming.