Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given 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