According to Baidu’s experience query, the methods for registration and cancellation of appointments on the official account of the Chengdu Army General Academy are as follows:

1. Open WeChat, search and follow the official WeChat of the Chengdu Army General Academy Public account.

2. In the official account, click on the "Medical Services" menu and select "Registration Appointment".

3. After entering the registration page, click "My Appointment".

4. Find the appointment record that needs to be canceled and click "Cancel Appointment".

6. In the pop-up confirmation box, click "OK" to cancel the reservation.