Task: Determine the prevailing emotional tone of the tweet, categorizing 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 most accurately represent the tweeter's mental state.
Tweet: @vInZzzY we regret the inconvenience caused. We have noted your concern. We will get in touch with you soon to discuss. Rgds, Abhijit
This tweet contains emotions: 
anticipation, optimism, sadness