Multiple Signers for one document

Hi, I'm using Adobe Sign Utility for Appian and I have a document with two signer fields and I have two participants. I want to assign each signature field to a participant. Each participant gets a task, but the first participant has to sign on a newly generated page in the document while both fields are assigned to the second participant. Even if the fields are allotted to the first participant, the task cannot be completed until both the signature fields are filled out. How can I assign these two fields to different participants who can be anyone?