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: @pandaflo22 We are sadden by this because we always strive to bring the best service to our customer. We will always be here for you. CM
This tweet contains emotions: 
anticipation, optimism, sadness, trust