then go to acquire
If you don’t have any previous Auto responder created, you will see this page.
Now click on Create an Auto responder.
Enter Keywords on which you want to send message to user who use them in the comments. Select Post on which the user comment matches the keyword. Type the Message which you want to send to user. Click Save.
Congratulations, you are done. Now when a user comments they will immediately receive your message that you have setup.