Helpdesk is not available in ITMS 7.x
In ITMS 7.x you the approver will get notification on schedule about requests made. This can be set
to be as often as needed.
Suggestion will be to create a report to get data in during a specific time frame by dynamically collecting the current time and getting the time differences, lets say an hour or 30 mintues. The report will run every 1 hour and if it returns any results it will send an email to the approver otherwise it will do nothing.
Software Management 7.x