Classify the emotions found in the tweet "Headed to MDW w/ layover in SLC. Got off for food. Wrong move. Bailed on my food &amp; barely made it. @SouthwestAir #WannaGetAway #Contest #sad". Select from the following: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If the tweet is emotionless, reply "neutral or no emotion".
sadness