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: @WestHamUtd poor service tonight to find season ticket holders in the seats we purchased online. Forced to move further away #unhappy
This tweet contains emotions: 
anger, sadness