Name: Big Easy T/P Location: 5000 Old Gentilly Rd, New Orleans, LA Distance from Slidell: Located In. Name: Mardi Gras Truck Stop Location: 2401 Elysian Fields, New Orleans, LA Distance from Slidell: 27 milesPhone Number: 504-945-1000. Name: The Palace Truckstop Location: I-10 Exit 246 A I-510 Exit 002C, New Orleans, LA Distance from Slidell: 27 miles.
Flights can be rescheduled for up to six hours before the original flight, regardless of the fare purchased. This procedure can only be done on the day of the flight. All GOL passengers can reschedule to an earlier flight, as long as it is on the same day as the original flight.
Expedia, for example, states that passengers  may have the option to cancel for a refund but doesn't guarantee it. But if you're booking flights at the recommended 54 days before your trip, you're most likely in luck. The first flights you book don't have to be the ones you take. ...just take a price break instead. CORRECTION: A previous version of this post stated that airlines must either hold your flight for 24 hours after booking OR allow you to cancel for a full refund. In fact, they must do both.