If it is a particular user unless they are the president of the company I defiantly would not do it and I would hope that your management will back you up on that.  However the only way I could think to do this was with the following.

1.  Create a new filed of type URL.  I called mine RITM URL.
2.  I used a UI Policy to make it read only and an ACL of type list edit to make it so someone cannot add it to their list layout and edit it.
3.  I created a Business rule on the sc_task table that is after insert no conditions since we want it on all task.  The below code creates the URL for you.

(function executeRule(current, previous /*null when async*/) {

	// Add your code here
	var url = gs.getProperty('glide.servlet.uri') + "sc_req_item.do?sys_id=" + current.getValue('request_item') + "&sysparm_view=";
	current.u_ritm_url = url;
	current.update();

})(current, previous);