Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @Delta.  Are you kidding?  Delayed from 7:30pm to 11:00 - only to cancel it because the pilot is overtime.
This tweet contains emotions: 
anger, disgust, sadness