How to format the appointment plug in

How can we make our appointment+ plugin look like:


Ours currently has the drop down arrows to select bedroom size. How can we format with buttons? Also, each time the service selection is changed the submit/refresh button has to be clicked. How can we make this update automatically? The website we were hoping to model after automatically links the price to the button selected, how can we do this? Is there another plugin we need?

Thank you,