A professional name

hey guys,
i need a professional for myself. its not appropriate for me to introduce myself to clients as "hanny" or "shuhann" which is hard to remember...

so im posting here in search of profession bloggers help to find the right name for me..

note: the name is not for my friends, relatives. its more for bosses, clients, customers, to easily remember me by...
to friends you can intro me as hanny, shuhann, cheebye, whatever you want :) ..

some names which i thought of..

Seth
Ryan
Terry
Isacc