1. Open official website and select the function of "air ticket inquiry".
2. Enter information such as departure place, destination, departure time, flight type and number of passengers.
3. Click the "Search" button, and the system will list the qualified ticket information.
4. Select the appropriate flight in the ticket information, fill in the passenger information and pay.
Please note that if you want to help others inquire about the ticket information, you need to know the departure place, destination, departure time, flight type and number of people, otherwise you can't inquire.