Please analyze the 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" and classify its emotional content. Choose from the following emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are detected, respond with "neutral or no emotion".
anticipation, optimism, sadness, trust