Tiffany Jenkins, a former gate agent, for JetBlue used her position to convert low-cost flights to more expensive flights and destinations for her friends, family, and acquaintances, according to the U.S. Attorney’s Office in the District of Massachusetts.

What happened?

Well, Jenkins had access to JetBlue’s computer reservation database which meant she had the ability to use the special code for involuntary exchange or “INVOL” to change flights for customers at no additional cost. Apparently, the code is meant to be used by agents to change flights for customers who miss their flights or experience a death in the family.

Jenkins used the code approximately 505 times for more than 100 different passengers in a 15 month period. The U.S. attorney’s office said many of those exchanges occurred after the passenger first booked low-price domestic flights. Jenkins exchanged those tickets for more expensive international flights instead.

The former JetBlue employee plead guilty for three counts of wire fraud in a Boston federal court on Friday. She is facing up to 20 years in prison after allegedly scamming the airline of nearly $1 million in flights. The 31-year-old was arrested and charged in November 2018 and is scheduled to be sentenced in January 2020.