there is a company who does it regardless of the airline. it aint cheap, but it is great!you want to use it for depart or arrive?
LJR & Associates:http://www.productionyak.com/business/Travel/Miscellaneous-Travel/LJR-Associates-LAX-Meet-and-amp-GreetOr:http://airportassistance.com/services-available.htm
Thanks. Have you used them before?
I looked into it once, when I was arriving in JFK with LH/LX and no external provider has access to faster immigration, they maybe can help and babysit, but no vip treatment