CSV import doesn't recognize reason column and identifies it as part of the flight number

[jonaldathanification]

Imported data:

Date | From | To | Flight Number | Reason | Plane
2018-12-12 | ORD | YYZ | UA 476 | C | 319
2018-12-13 | YYZ | DEN | UA 1799 | C | 319
2018-12-13 | DEN | SMF | UA 282 | C | 738

Verification from openflights when doing import:
Date | Flight | From | To | Miles | Time | Plane | Reg | Seat | Class | Type | Reason | Trip | Comment
1 | 2018-12-12 |   | United Airlines(was: C) UA 476 | ORD | YYZ | 319 | 01:22 |   |   |   |   |   |   |   |   |  
2 | 2018-12-13 |   | United Airlines(was: C) UA 1799 | YYZ | DEN | 319 | 03:07 |   |   |   |   |   |   |   |   |  
3 | 2018-12-13 |   | United Airlines(was: C) UA 282 | DEN | SMF | 738 | 02:18 |  

Please let me know if I'm doing something wrong

[jonaldathanification]

Actually it was fixed when I added "Airline" "United Airlines"