Why don't wechat send a text message when booking a plane ticket?

Sometimes text messages are sent later. If you book through a regular website, there will be no problem.

Wechat is a free application launched by Tencent on 201110, which provides instant messaging service for intelligent terminals. Wechat supports fast sending of free voice messages, videos, pictures and texts across communication operators and operating system platforms through the network. At the same time, you can also use streaming media content such as "shake", "drift bottle", "circle of friends", "public platform" and "voice notepad" and the information of location-based social plug-ins.