Ashen is a nobleman from Waterdeep. He is down in the Sword Coast on business. You will find him standing in a very out-of-the-way spot in the Temple area, presumably in his desperate search for fresh air. No matter what responses do you choose, he will get rebuff you (despite him initiating the talk) and vanish from the game to never be seen again.
Not to be rude, but will you stand a bit back from me? By all the gods, I shall be glad to be back in Waterdeep come the new tenday.

Like most (if not all) nobleman from Waterdeep, Ashen finds the Sword Coast smelly and vermin ridden. The only reason he's still here is that his caravan might be raided by bandits on the return journey.

What do I NOT find displeasing?! Aesthetically, the air is absolutely THICK with manual labor. If this is what the land is like with most of its miners out of work, I could not imagine it in full swing. I simply MUST get out of here. If not for the bandits, I would be on the FIRST caravan out of town. Curse this merchants' trade! Father must wish me dead to inflict this upon me! Away from me! I need my air.