The systems broke down at the airport where Angel works at. Angel must sit passengers into their corresponding seats, following his own sketchy system of rules.
Fast-csv reads and processes the passengers data from data.csv. Angel's criteria for admitting passengers onboard are applied for processing.
To run this code, type in the console your destination of choice, like so:
node hmm.js "JFK"
The flight destination must match flight_destination in data.csv