Oh, what a pleasant surprise to meet a decent person in such a place! I came here for a rare ingredient - corpse dust. It can be gathered from skeletal remains and there is an ample number of them in the dungeon.
Being a magic user, I'm quite able to defend myself against local monsters, but I'm getting lost in no time, it's very embarrassing. Probably you could help me? I would be happy to pay for your service with one of my best wands.
Upon speaking with the Old Wandmaker without the Corpse dust: Edit
Any luck with corpse dust, <insert class>? Bone piles are the most obvious places to look.
Upon returning to the Old wandmaker with Corpse dust: Edit
Oh, I see you have succeeded! I do hope it hasn't troubled you too much. As I promised, you can choose one of my high quality wands.