How to send an invitation message when you invite a teacher to dinner?

Frankly speaking, here are some examples:

1, dear teacher X.

Hello, our class is going to hold a dinner party, and all the students are eager for you to attend. If you have time, please come to a restaurant on X. You are very welcome to attend.

Your student: xx.

2. When sending an invitation message to the teacher, it should be noted that if the teacher is serious, it is best to send it according to the rules: Hello, Teacher X, this is XXX. Finally, "I look forward to your arrival, thank you very much." If the teacher is approachable, you can add your own words appropriately, which makes it easier to get closer to the teacher.