Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: @flybe Doesn't explain the ability to land at Manchester but not Bradford - other than more convenient for Flybe. Many unhappy travelers
This tweet contains emotions: 
pessimism, sadness