Need a simple Booking Cart without Paypal

I am taking over a website that has been partly created.
I am looking for a a Booking Cart that does NOT link in to Paypal or any other paying tools.
– I need to be able to add “Add to Cart” buttons on posts.
– The “Cart need to be on a separate page (eg.’Booking’)
– The cart information & a customer details form needs to be sent to a specified email for viewing.

I have made all the pages with WP Ultra Simple Paypal- but cannot take payments.
I am computer literate but novice at WordPress…