Go back to your hometown to get married, and invite your colleagues to dinner at work. How to operate? I don't know what to do. The appearance of thirty or forty people

I just did it, too I hope I can bring you some reference:

When you come back from your hometown, go to the hotel to make an appointment for consultation (mainly how much is a table with drinks, the time, and the lobby of that room). By the way, I asked for some invitations. After making an appointment with the hotel, I wrote down the names of my colleagues on the invitation, including where to eat, when to eat, when to wait, and then sent them to my colleagues the next day.