China Southern didn't send me a booking message. It may be a network problem and I didn't receive a confirmation message. China Southern Airlines didn't send me a booking message, or it may have filled in someone else's mobile phone number when booking a plane ticket. If it weren't for the network problem, the text message would be delayed a little, just wait a little. Confirm that SMS is not used as a flight permit. On the day of the flight, you can go to the airport to check in 90 minutes in advance with valid documents. You can also call the customer service number of China Southern Airlines and tell the other party the date, flight and ID number to confirm whether there is a problem.