How to write Hainan tour group number?

Company or department name abbreviation+route name abbreviation+tour date. Hainan tour group number is a serial number arranged by each travel agency for its own tour group. Company or department name abbreviation+line name abbreviation+departure date is the tour group number. Hainan, referred to as "Qiong" for short, is the capital of Haikou, a provincial administrative region, a special economic zone and a free trade pilot zone (port) in People's Republic of China (PRC). Located in the south of China.