Originally Posted by
opasgirl

Here’s the screenshot from Delta.
It's confused because of the DL codeshare number. G on an actual DL flight domestic would be first class. What did it show when actually booking? If it showed F then, you have a case for F (which is same coach seats, just a slightly better meal) on this segment.
NCE-JFK will be on an updated 764. Thus has PS cabin.