Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: So @Ryanair site crashes everytime I try to book - how do they help? Tell me there's nothing wrong &amp; hang up #furious #helpless @SimonCalder
This tweet contains emotions: 
anger, disgust, sadness