Originally Posted by
WineCountryUA
typo
, meant to be a question ending with??? "which (of the two) is the legally binding label???"
While a "reasonable person" might not have a clear idea of what AC's fare class codes represent, or indeed know whether the UA site is displaying UA or AC fare codes, or even if here is a difference between the two, that same reasonable person more than likely is aware of what "First Class" means.