For 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!", classify the emotional tone using the following list: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotion is discernible, state "neutral or no emotion".
anticipation, joy, optimism