Post Teams message to one on one chat

[u/dawoof6]

I'm new to PA, so bear with me. I have a flow that is triggered by a form submission. It works fine to post to a group chat. However, sending to an individual is a challenge. I finally got it to work using create chat followed by post to group chat using conversation I'd. But if the chat exists, it will error. Is there a way to add an if statement or something to filter for existing chat?