At the top of the page it says:

> To COMPLETE BOOKING, please review Travel Details, click “Next >>” at the bottom of the page to Enter Trip Information

There is no such next button.

Also, just basic UI design: rather than a message telling me where to look and click, the next button should be right there and be clickable. It should say, "click here" and do the right thing, not point me to something which does not exist.