don't understand format of if/else statements

[Colin999]

Hello, I'm using PythonAnywhere.com. I don't understand how to format these if/else statements so when the user doesn't enter their name, the result will ONLY be "Please enter your name." Instead it adds "Hi You are a student".

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

if first_name == "":
    print("Please enter your name: ")

if first_name.lower() == "steve":
    print("You are the instructor")

else:
    print("Hi " + first_name + "you are a student")

Output:
What is your name? 
Please enter your name: 
Hi  You are a student