PRNewswire -- Southwest Airlines today celebrated the airline’s new service at LaGuardia with its “New Service, New Attitude, New York” themed celebration. Southwest Customers and Employees dined on New York style bagels while being serenaded by Southwest’s rapping flight attendant, David Holmes http://www.youtube.com/watch?v=ivjybzdXVmI . Southwest Airlines’ Senior Vice President of Operations Greg Wells joined the Port Authority of New York and New Jersey’s Director of Aviation William R. DeCota in a morning news conference at LaGuardia to launch the airline’s new service.