Find Daphne Stilwell in Westfall.
Good! Your lack of hesitation is a sure sign that you are prepared and eager to test yourself. So be it.
At the very ends of Westfall's Longshore, a small house overlooks the ocean. There, a couple lives, the Stilwells. Jordan is an incredible smith, and he's gone to Ironforge to meet with the dwarves for a while. But this has left Daphne, his wife, alone and unprotected.
Reports suggest that the Defias have all but taken over the area, Daphne may need some protection from the villains. Go there.