Task: Evaluate the tweet for emotional cues and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that indicate the tweeter's state of mind.
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!
This tweet contains emotions: 
anticipation, joy, optimism