So I called up the captain, "Please bring me my wine"
He said, "We haven't had that spirit here since 1969"

Quick Thought

He calls for "the Captain," who might be the Wine Captain, the person who serves wine in restaurants. But "Captain" obviously has connotations of ships and ocean travel, as if the speaker were suddenly at sea.

Deep Thought

He asks for wine or, rather, "my wine." He has become rather demanding, hasn't he? 

Nonetheless, the Captain sounds pleased that somebody has decided to get drunk around the place. It's like when a really cool and fun person walks into a really lame party. But hey, aren't they dancing in the courtyards? That sounds pretty fun to us, but the Captain sounds jaded instead. 

The speaker's request for alcohol reminds El Capitan of the heady days back in 1969, the year of the Woodstock Festival that arguably marked the height of the 1960s counterculture. The patrons (or prisoners) of the hotel no longer have the spirit of 1969.