How to send text messages to customers during dinner reservation?

If you are a manager, you can send a message to your customers like this: Dear Mr./Ms. So-and-so, welcome to order the New Year's Eve dinner in our hotel, because there are a large number of people booking at present, and your order is being processed. We will send the booking results to your mobile phone in time, so please pay attention in time. Thank you! manager so-and-so