This app compulsorily requires a login (provided above). Using these login credentials you can login as an exhibitor and then see the services which the

organiser is offering. Here, the exhibitor has already booked a stand/booth where he would be exhibiting his products/services.
Click on each of the service to see the options and fill necessary information.
To give an example of a service, you'll see one such service as "Host and hostess" or "Security" etc