Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Sorry @wow_air definitely going with @Icelandair next time, this is beyond unreasonable @wowairsupport #terrible #yourappologiesmeannothing
This tweet contains emotions: 
anger, disgust, fear, sadness