system
A chat on subreddit /r/me_irl
human
The real tell is the (first class) part. Everything else could be a real quote from a genuine prick but that touch makes it hard to take it seriously, IMO.
gpt
Yeah, like what's a first class trip to somewhere? It doesn't even make sense. 
That, and even a rudimentary knowledge of Ireland makes it very questionable as to whether anyone could visit there and legitimately come away with that impression. I mean, the days of car bombs are pretty distant.

Edit: also, three tours of Afghanistan leading to a job that gives first class travel?