Re: Good try, but...
in reply to a message by Pavlos
...in this case U is not a name but a Burmese honorific title, equivalent to the English "Sir" or "Mr.":
http://encycl.opentopia.com/term/Burmese_English
http://encycl.opentopia.com/term/Burmese_English
Replies
Aha! Do calling him "Mr U Thant" would be superfluous :)