The following dialog box appears when booking air tickets on the official mobile app of China Eastern Airlines. What do you mean, where to maintain it, and how to book a plane ticket?

This dialog box indicates that there is no ticket available for the official mobile phone application of China Eastern Airlines. If you want to book a ticket, please try another time or flight.

If you want to maintain your itinerary, I suggest you check other airlines' applications or websites to find available air tickets. You can also find air tickets through travel agencies or online travel platforms.

If you have confirmed the plane ticket you want to book, please confirm whether your contact information and information are correct, and arrive at the airport in advance to ensure that you board the plane on time. In addition, you can also view other information of your ticket in the application, such as the boarding gate and flight schedule.