From your Contact Form Configuration Page, you can create additional fields within your contact form in order to collect more information from clients during their booking process. You can also choose when/where to show these fields as well as other customizations. The information you collect will be kept in each client's record.
From here, you can also:
Create a title
Enter a description
Add new questions and sub questions
Choose to add forms to other widgets
Preview, edit and add Custom Forms to your Contact Forms.