Task: Examine the tweet to determine its emotional content, assigning it to 'neutral or no emotion' or one or more of the listed emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best describe the tweeter's feelings.
Tweet: @AlaskaAir as a long time Gold &amp; near Million mile member just had a terrible customer service experience #disappointing
This tweet contains emotions: 