Texas-based American Airlines is making a move to resolve labor disputes with its pilots and flight attendants ahead of the summer travel season. The Fort Worth-based carrier is offering pilots a substantial pay raise. CEO Robert Isom says a proposed contract calls for an $8 billion increase in pay over four-years. The flight attendants' union staged an informational picket on Tuesday at DFW Airport. A spokesperson says flight attendants haven't had a raise for more than four years, and the union has brought in a federal mediator to negotiate.