We have public kiosks where participants complete surveys. We would like confirmation emails to be sent to participants after completing the surveys and obviously, we don't want to require the participants to register, as the submission always redirects to the first question in the survey for the next participant to fill out. I don't see any way to do this, can someone please enlighten me? Thanks.

I assume you have asked for the email address in the survey. If so, you can use the Basic or Detailed admin notification email as a confirmation. See item 1.4 here on how to send that mail to a respondent - manual.limesurvey.org/Survey_settings#No..._.26_data_management .