InfoPath Dev

I have a http address like below, that when i enter a job number at the end it returns xml data for that job.

http://requestinfoservice.xyz.com/HttpService.svc/2008/08/04/Services?requestNumber=

The job number though would be user entered from within the form.

 Is there a way I can do this?

There isn't a way to change a data connection's address without using code.

Might you be able to make a simple web service that returns the XML based on an input parameter?

That would be a best practice as opposed to putting code inside your InfoPath form to do this.