Prevent User from creating duplicate Job Requsition for a Single Incumbent Position

Summary:

Restriction on job requisition in such a way that if today one recruiter raised job requisition on position 123 then another recruiter should not be able to raise job requisition for the same position unless the first job requisition in cancelled.
Can you provide some mechanism or autocomplete rules to achieve the same.

Content (please ensure you mask any confidential information):

Restriction on job requisition in such a way that if today one recruiter raised job requisition on position 123 then another recruiter should not be able to raise job requisition for the same position unless the first job requisition in cancelled.