Examine 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!" and determine which of these emotions are present: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If there are no identifiable emotions, reply with "neutral or no emotion".
anticipation, joy, optimism