Originally Posted by
dhuey
The only potential I see here is that perhaps Z-class is the award inventory, and the agent didn't notice that the earlier return flight on 9/14 had one seat available. That's possible, but this agent seemed knowledgeable to me and unlikely to make such a mistake.
I don't believe so. JCD are F fares (in decreasing order), Q and Z are MCS and discounted MCS, and the rest are the normal economy buckets.