Google Form Specific Automatic Response

I am aware that I can add a little code to a Google Form's spreadsheet to have it auto respond to a submission. I am curious if there's a way to have a person submit the form and then have it auto respond with specific information, most likely pulled from a separate sheet.

For example, submitter wants to know a password that is specific to them so they fill out the Google Form and the Form auto responds with the submitter's specific password. Is this possible?