Very Easy question concerning input

[TechSpood]

can someone tell me how to use a variable from a previous line and get a
variable from the currentline using raw_input, for example

I am trying to make a simple program that ask the user his name then says
"welcome (name) would you like to do something"

I tried this...but it doesn't work right...

name=raw_input ("What is your name?")
choice1=raw_input "welcome, %s, would you like to do something?" % name

doing this displays a %s instead of the persons name, can you tell me how to
fix this?

thanks