Hiya blue, your best shot at finding them would be to make a post in the group 'missed connections' which was made for thing like this. Just hit groups in the menu at the top at it's one of the first ones you see. Go to the forum and click "New Topic" to make your post.
Since the chat is made to be anonymous, it's not always the case that you manage to find them though, not everyone in there have an account. But I wish you the best of luck. You could try the chat again, or if you feel up to talking about your issue here, post a question like you just did.