Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: United Airline at Newark needs more Kiosks so that people won't miss their cut off time.  And hire more ppl too.  #horrible
This tweet contains emotions: 
anger, disgust