Get variables with rasa

hi, I have read the documentation but i don’t understand how to get a variable in rasa. Example :

user-> Hi bot-> Hello human, what is your name. user. user->Pedro camacho. bot -> nece to meet you Pedro Camacho

If you are using RASA X then see this video YouTube you can get little bit idea about how to use variables. (start video direct from 26 min)

hi , did you get it? if you understand how it works i need you to explain it for me please :slight_smile: