Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Didn't know the @ChickfilA cow day thing ended at 7:30 so showed up 30 min late looking like a cow with no sandwich #sadness 😅😅😅
This tweet contains emotions: 
pessimism, sadness