Hi Rani,
Thanks so much for reaching out!
By default, Event Tickets Plus does send a variety of emails to attendees upon purchase of tickets, though there is no automatic feedback email generated. You are welcome to try to add a third-party plugin, such as Follow Ups, that can help you achieve the results that you are looking for. Please not that we are not affiliated with this plugin in any way and cannot guarantee compatibility.
Please let me know if you have any other questions!
Thanks,
Jaime