What dialogue must you use for Miranda lawson romance on mass effect 2

To have a romance with Miranda (or Jack) you must always be nice to her. Always agree with her, and you must must must do her loyalty mission. Take lots of opportunities to talk to her, usually on the Normandy. At a certain point in the game, you'll find her and Jack fighting in Miranda's room. This will lead to you having to make a choice on who is right: Miranda or Jack. If you choose one of them, then your relationship with her will greatly raise. The other will get mad, and if you want them to forgive you, you must later talk to them and use either a renegade of paragon dialogue/influence line. Alternatively, during the fight you can use a renegade/paragon line to get them both to stop and prevent any hurt feelings.