the challenge on this kind of project is the adaptability of the customers. if you are a tourist, you will not go a long way just to book your hotel or flights unless the package is so attractive like 50-75% discount, etc. what i'm trying to say is, just book your flights with your debit/credit card directly instead of buying your token, follow the steps and so on... this makes your booking task so complicated that's why no token or altcoin is successful yet to this industry. just my thoughts though.