scenario:

requestor route the form for approval, multiple approvers. if approvers has a question he will ask question and it should go back to requestor and requestor reply then comes to approver and this step they can repeat.

it is just like discussion between approvers  and  Requestors.

once approver seems ok then he can approve/ not ok can reject. is it possible ? please let me know and give me any sample if you guys have thanks.