In the same city, China Southern Airlines recruits flight attendants. Why do some people inform the interview and others don't?

There are orders. In the same city, China Southern Airlines recruits flight attendants. Some informed the interview, and some arranged it without notice. China Southern Airlines Group Co., Ltd., headquartered in Guangzhou, was formally established on 1 991February1,with blue vertical tail inlaid with red kapok as the company logo.