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: @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