How to populate information from details of incident into request

How to populate information from details of incident into request

We have a need to populate information gathered from the details of the service request into the associated tasks. The example I can give is a new-hire request. When this goes in, the HR department fills in the necessary information, assigns the editor who is the hiring manager, and they fill in the rest of the information. Based on their responses we create tasks but the tasks need to contain some of the information from the details, such as new employee name, start date, department...... 
Any information or direction would be very helpful.
Thanks.

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