Task: Assess the emotional content of the tweet and classify 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 best represent the tweeter's mental state.
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