Search the cabin of the Hired Courier's ship in Stormwind Harbor for evidence of what might be delaying him.
Search the courier's cabin.
The last of my belongings were supposed to be arriving from Theramore today. The ship has arrived, but I haven't heard from the courier. The crate he was transporting had items that've been in my family for generations.
Will you go down to Stormwind Harbor and see what's keeping him?