[
  {
    "flightNumber": "LH12"
  },
  {
    "flightNumber": "L123"
  },
  {
    "flightNumber": "L1234"
  },
  {
    "flightNumber": "1234"
  },
  {
    "flightNumber": "123456"
  },
  {
    "flightNumber": "LHASDF"
  },
  {
    "flightNumber": "L9"
  }
]
