Hi There. I'm trying to book a flight for later in the year and have found that all the Delta One options are "Delta One Extra" now. I thought the new Basic - Classic - Extra were just tweaks to the normal fare class, not limited stock? Did they run out of Delta One Classic? Or is there no such thing as Delta One Classic anymore? I'm having real trouble finding info on the web and delta help is not being helpful beyond saying there's only "Extra" available.

Thanks!