Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: @Uber very disappointing that support has not responded to my email!! #bad #uber #service
This tweet contains emotions: 
anger, disgust, pessimism, sadness