Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @partydelightsUK it's 5679787. Cannot DM you as we don't follow each other. Not such a #delight #party #fail #letdown
This tweet contains emotions: 
anger, sadness