Order Up Quest
There is the conflict between Trudy and Wolfgang at the Drumlin Diner. To start the quest talk to Wolfgang or Trudy (not recommended, less options).
Related points of interest
Stages of "Order Up" quest
2. Talk to Trudy
Wolfgang over at the Drumlin Diner says Trudy owes him money she won't pay. He's offering me a reward if I resolve their disagreement.
For peaceful solution of the conflict try to persuade Trudy. You can also agree to help her and kill Wolfgang and Simone. Another option is to kill Trudy and Patrick.
2.1. Kill Wolfgang / Kill Simone
Trudy, the owner of the Drumlin Diner, is offering me a reward if I kill Wolfgang, a local chem dealer who got her son addicted to Jet.
2.1.1. Talk to Trudy
Wolfgang and his friend are dead. Trudy should be happy about this.
2.2. Kill Trudy / Kill Patrick
2.2.1. Talk to Wolfgang
Trudy and her son are dead. Wolfgang will be happy about this.
2.3. Talk to Wolfgang
I convinced Trudy to pay off Wolfgang. He'll be pleased to hear about this.
3. Quest completed
I put an end to the conflict between Trudy and Wolfgang at the Drumlin Diner.