Yes, it is possible to customize booking confirmation emails for individual events. In the Event Dashboard, click on the Emails section. Click on the “Enable Booking Confirmation Email” option.
In the Subject area, you can enter your custom email subject and in the Body area, you can enter your custom message. You can see available variables in the help text on the right side of the email body field.
For your second question, Yes, it is also possible to set multiple prices for an event. In the Event Dashboard, click on the Price Manager section. Here you can add multiple price tiers.
Always happy to answer your questions.