It was a fun event.
I followed advise from FT and just went without registration. No one checked. Waiting time was kind of long during dinner time, close to one hour until I got my burger. I am not a burger fan but Shake Shack burger was tasty but greasy.
I contacted DL earlier to request registration for this event. This is what I got back:
no one in our office has been advised of this event. In the hope of being able to track it down, we’ve searched our information, as well as going to delta.com, and to Google. Unfortunately, to no avail. I have reached out by email to our New York office for information on the Shake Shack. After two hours have yet to receive a reply.