If statement using string function [closed]

For a learning project, I try to write a program that asks for a name, and then display "Access granted" if and only if the name is "Thomas".

So far, I wrote this.

name = str(input("What is your name?"))

if name == "Thomas":
print("Access granted")

I would expect it to work as described earlier, but instead I get this error message :

IndentationError: expected an indented block

What does this message mean and how to fix it ? I don't know where to start.