Posted by Iva Radman – emailRICHMOND, VA (WWBT)--JetBlue is switching to a new reservation system Friday.Customers almost might have trouble making reservations. During the switch, passengers cannot check on flight status, or make flight changes.JetBlue is expecting long lines at airports. The airline is urging customers to get to your flight early today. (c) 2010. WWBT, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.