Customize Booking Form

Hi

I have a question about the plugin Events Manager.
Is it possible to customize the booking form?

I need additional information like
– available spaces
– booked spaces

When I look in the admin menu the booking of the event I see the information.
See http://www.directupload.net/file/d/4643/lsakh3ny_jpg.htm

In the booking form I see only
– price
– spaces
See http://www.directupload.net/file/d/4643/fyex3i9x_jpg.htm

Unfortunately I have less experience with php.
I hope someone can tell me whether this is possible to customize this columns to the booking form and where the adjustments have to be made.

Thanks in advance.
Dave