Just came out of an idea of a flight /airline scheduling DAC. This will help people determine their respective flight schedules. Just upon purchasing the ticket, the schedule is associated with a FlightCoin or something that would introduce to a blockchain. Once the schedule has been confirmed by a passenger, the airline company will be able to pay the service fee(in cryptocurrency) and the DAC would issue an SMS info update info telling the passenger that he or she has a scheduled flight ahead. It will be something to look forward to . B)