Hi Suniti,
It is on our future roadmap to enhance the Take Action experience. Thank you for your feedback above, it will be considered during the design of those enhancements. For now, you can add additional steps to the workflow. It would allow for a set number of interactions between the initiator and assignee before closing the workflow. An example would be before it's closed, send a Form activity to the initiator asking for any additional information. Create transitional conditions based on if there is or is not. If there is input from the initiator then it's sent back to the assignee. If there is no more input, then close the workflow. That is one suggestion, but there are several ways to configure the steps and branch the steps based on the form response.
Please let me know if you have any additional questions.
Thank you,
Mandy Bank
Product Analyst, D360 Govern