Classify the emotions found in the tweet "mattmilne76 Thank you for letting us know!  Please do not hesitate to contact us in the future, if our assistance is needed. Thank you!". 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".
anticipation, joy, optimism