Here is the cool part, under each of these I have done pop up dialog boxes to continue the discussion. As soon as that line of dialog is done, the mission box comes up allowing you to complete the other 2 questions. And pop up dialog boxes after those. Thus, the your toon can ask the questions in any order he/she wants and receive a dialog chain for each.
Now, for those highlighted questions that you need to ask to continue the mission that we can't do yet. Well, after the toon asks all three of the questions, (the progresses through the dialog) Make one more 'talk to UGC contact' and that will be your IMPORTANT question.
the mission that I have tried this in is not yet up, but the test play does work. Have fun Foundrying.