When someone sends you an email like this, you can’t not try to help:
Hello Nick, sorry to trouble you with this.
At a summer fair on Hilly Fields last year I took part in a welly throwing contest and won a delightful silver welly on a plinth. I was asked to return this before this years and don't seem to have the detailsof the man who gave it to me. I am happy dropping it off, but I don't know where. It was very windy and the bands roof cover blew off if that gives you any idea of which day it was. If you could put me in contact with the organisers that would be great.
Are you the person this man needs to speak to? Do you know the person who is?
If so, please email us at firstname.lastname@example.org and we will reunite you.