String after and before character

I have this string

x = "Hello   how are    you Peter /"

And I would like to get only

x = "Peter"

I would like to find patter that extract only word after "you" and before "/" (exluded)

I would like to use something like

x = sub(" you*/.", "", x)

But I dont know how to make the pattern correctly.

>Solution :

library(stringr)
str_match(x, "you\\s*(.*?)\\s*\\/")[, 2]
#[1] "Peter"