What's the meaning of "assign to something"?

[Mori]

I don't understand the meaning of assign to something in the following video, and can't find the related sense in a dictionary.

https://drive.google.com/file/d/1jEMZDM8fE87dFrR4bLb8olMHyOC2sB4e/view?usp=sharing

 

[emsr2d2]

It means she could ask her dad to arrange for him to join her team.

 

[Piscean]

Definition #3 here fits: https://www.collinsdictionary.com/dictionary/english/assign

 

[Mori]

Definition #3 here fits: https://www.collinsdictionary.com/dictionary/english/assign

So glad you're back!

 

[jutfrank]

It's not so much that he would join her team but rather be assigned as her personal bodyguard. She's the US President's daughter and he's a special agent.

I don't understand the meaning of assign to something in the following video

The pattern is assign somebody to something.