You can call the human resources department to talk about the extension. Of course, it doesn't matter if you can't get in touch. If you don't go, you will automatically postpone the first gear, but it is best to communicate face to face or go to Guangzhou to say it, just to be on the safe side.

Headquartered in Guangzhou, China Southern Airlines Co., Ltd. is the airline with the largest number of transport planes, the most developed route network and the largest annual passenger traffic in China. China Southern Airlines ranks first in Asia and fifth in the world, and is the first airline in the world to operate both Airbus A380 and Boeing 787. It is the civil airline with the largest number of flights, the densest route network and the largest annual passenger traffic in China.