mb2ai
Hi there, I would agree with the others, you generally have to start where you can, but also if you're prepared to make the effort something often will come up. Send cv's and letters to as many airlines / handling agents that you can think of. Also check out aviationjobsearch.co.uk and flightglobal.com, don't be afraid to apply for things that you're not sure about, all interviews are good experience and it's all about you finding out about a company and the position as well as them finding out about you!
I was lucky enough to get a job in operations with an airline who preferred people with no experience who they could train from scratch! A degree in a related subject was also desireable and my international tourism degree was really helpful.
You will probably get a lot of knockbacks as with all job hunts but perserverance is key and i'm sure you'll get something somewhere!
Good luck!