(BASH Scripting)

Hello, I wrote a script in Bash that prompts the user to input a filename for it to be created, and then I printed out to the terminal that the file has been created. However, I need to revise it so that the script will not create a file if no input is received, and I have no idea how I should re-write it. Below is the script:

#! /bin/bash

echo enter a file name:

read FILENAME

touch $FILENAME

echo $FILENAME has been created

Thank you so much for any help/information you can provide! Screenshots of the script and output is greatly appreciated.