I thought FS service means:

1) using those special FS plates with silver trim
2) a proper HOT meal (steak,chicken etc..)
3) Salad with lobster claw
4) Salmon Course?
5) 2nd light snack meal befor landing

As yvrguy said what u got there looks like a 2 class trans con I did back in May
JFK-SFO on the 763.