flight planning services for airlines, aircraft companies, pilots and the military; flight planning services for airlines, aircraft companies, pilots and the military, namely, providing flight arrival and departure information, providing airport information, providing flight plans, navigational planning and charting assistance, flight scheduling, international flight coordination, overflight and landing clearance services, coordinating runway and landing slots, aircraft boarding and deplaning services, airport check-in services, aircraft crew scheduling, flight crew coordination services, coordinating flight catering, air traffic control services, aircraft handling, aircraft towing, push-back and taxi services, aircraft ramp supervision services, fastening and anchoring aircraft to airport tarmacs, providing weather briefings and information, providing security briefings, flight load planning, aircraft loading and unloading of cargo and luggage, airport baggage and cargo handling services, customs and agriculture notification, obtaining and coordinating diplomatic clearances, coordinating and obtaining visas