There is no availability in N. You're getting a quoted price based on a Q fare
[KVS Availability Tool 7.0.2/Diamond - Sabre: Availability/FS/US]
Code:
PHL Philadelphia Metro / Intl PA US = PHL TTN [KPHL]
ZRH Zurich CH [LSZH]
THU 09 Aug 2012
Carrier Flight From Depart To Arrive A/C St Availability
--------- ------ ---- -------- ---- -------- --- -- --------------------------------------------------------
US 710 PHL 18:15 ZRH 08:25 767 D9 Z9 Y9 B9 M9 H9 Q9 N0 V0 W0 L0 S0 T0 G0 K0 U0 E0 R0 C9