You go out on the street and you have got some McFly tokens. Tokens are “flight itself”. You use them to order an aerial vehicle (electric vertical take-off and landing, autonomous or semi-piloted) to the nearest landing area or directly to your house roof and you use your mobile device.
At times you will wish to vote to get priority service (for example, in case of a temporary lack of available vehicles in your area). Then you do it in two ways:

• With the number of tokens in your wallet (without spending them, this affects the "class of service")
• By consenting to a higher tariff determined by demand and supply ratio at the moment. (And the decentralized system allows you to see real-time changes in the current demand and supply of network capacity in your area and your fair trading will form the final flight price)
  
  The aerial vehicle then arrives to take you to the desired destination and some tokens are transferred from the client’s wallet into the "current" (operational) wallet of the vehicle. From this wallet the vehicle autonomously settles all associated costs of the urban flight and its ecosystem and infrastructure:
• Battery recharge costs
• Landing site (vertiport) rent
• Purchase of media content the passenger opted to enjoy
• Scheduled maintenance
• Air traffic control
• Insurance costs, etc
  
  The vehicle may even track cabin damage and other excessive use of its resources and issues additional bill to the passenger on the smart contract basis.