Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: I would like to congratulate the people of Saudi Arabia a happy and a joyous national day. May you all have a great time! #اليوم_الوطني
This tweet contains emotions: 
joy, optimism