Originally Posted by
JohnnyGlobal
This situation seems very straightforward: Delta didn't fulfill their product/service guarantee for this specific flight, on this specific route. Period. They don't get a 'hall pass' when some other variable -- whatever it is -- intervenes to prevent them from honoring the (strongly) implied guarantee.
Show us where Delta "guaranteed" that the customer would have lie-flat seats on their flight? In fact, here is the OP's flight info, with a disclaimer clearly stating "In-Flight services and amenities may vary and are subject to change.":
Disclaimer: