Automation to send public reply when new ticket is received

Hi ZD community!

I would like to create an automation / trigger to send a public reply when a new ticket is first received.

Reason being, we are a vacation company are are about to have a product launch for the 2026 season - and each new booking will create a new ticket which reservations will have to review and reply to.

I know that when this release happens we will have a BIG wave of new tickets and it will take reservations 2-3 weeks complete the follow up.

I would like for the system to automatically send a reply a few hours after receiving acknowledging the new order, and informing the sender of the expected delay.

I would like for this to appear as a public reply and not as the standard notification sent after a new ticket is received.

thank you!