What message does the telecom send when checking the itinerary?

Hello, if you use your mobile phone to check the travel itinerary code, you can use WeChat Mine, and then select, Master, click in and then select. After clicking on the epidemic prevention health code, you can check your itinerary code according to the steps, and you can also find many other things about the itinerary in the column of epidemic prevention health code. Please accept it if you are satisfied. Thank you.