Auto Mail

Hello, I accept reservations using the Booking feature in this theme. But he does not send me an e-mail that the reservation has been made. I don't want to use Woocommerce. Because it is very complicated and bothers the user too much. The reservation attachment in this theme is much simpler and more useful.
Is there a plugin that can automatically send me an e-mail when a reservation arrives on my site?
Or can I do this by adding any code to this theme? I really need your help.
Theme Name: Book Your Travel

When the customer fills in the booking form, the reservation and information made on the Booking tab in the Tour section of the WP Admin Panel are displayed. But since I have to make a reservation on the clock, I cannot check in every minute. That's why I want him to send me an e-mail when a reservation arrives. So I need a plugin or line of code
@Tomz @NullMaster @Deepansh

There was a problem on the server side. I contacted my hosting company. They said they had this problem for 3-5 days. It's working perfectly now. Thank you very much for your help. Should I install an external plugin to send automatic mail to the person who made the reservation? Or does the theme have this feature? Can you help me? Because there is no such thing in sight. Can you look through the codes and help me?

Thank you very much for your support.
@ukgamer @frizzel