Task: Evaluate the tweet for emotional cues 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 indicate the tweeter's state of mind.
Tweet: @bt_uk appointment booked between 1-6 today, waited in all day and nobody showed up, also requested a call back and never got one #awful
This tweet contains emotions: 
anger, disgust