IS it possible to make Dynamic attribute mapping for user provisioning?

I have an integration between Azure and Zendesk.

Currently I am trying to provision the Users to Zendesk. However, it turns out the manager field for user's is populated with the Manager's ID instead of Display Name. 

So an example user looks like this

1. ID: B32-H123-W1231
2. DisplayName: Tom Doe
3. Title: Accountant
4. Telephone No: mailto:t.doe@corp.com
5. City: London
6. Department: Finance
7. Manager: A122-U88-P1232

The Manager's record is 

1. ID: A122-U88-P1232
2. DisplayName: John Smith
3. Title: Head of Finance
4. Telephone No: mailto:t.doe@corp.com
5. City: London
6. Department: Finance
7. Manager: Z452-R25-Q1492

When setting up the user provisioning, for Tom Doe, I want to be able to send 'John Smith' as manager and not 'A122-U88-P1232'

Is there a way create a dynamic attribute that will lookup the User with ID A122-U88-P1232 and return 'John Smith' so I can send the value of 'John Smith' to Zendesk?