I thought I'd steal pearsons idea for initials but with airports
if you have 3+ initials enter them as an iata code into this database http://airlinecodes.co.uk
and see what airport you are. eg if you were called John F Kennedy you would enter JFK
and see what airport that is (I wonder). Unfortunately not everyone will have one. If you have no middle name enter the letter of your second syllable eg Barry smith = brs or Paul Benson = pbs. And if you have more than one middle name use the first one that gives a result.
i am RJB which is Rajbiraj, Nepal