I would like to book a plane ticket to Beijing.
If you would like to express ''something that you would like to do'', you can use the structure 我想要 wǒ xiǎng yào. The structure can also be used when you want to express ''you would like to have certain things''.
|我想要||+ Verb||+ Object|
|I would like||to book||a plane ticket.|
|I would like||to go||to China|
|I would like||a window seat.|