Conflict resolution is a way for two or more parties to find a peaceful solution to a disagreement among them. The disagreement may be personal, financial, political, or emotional. When a dispute arises, often the best course of action is negotiation to resolve the disagreement.
Macbeth had several impediments to assassinate Duncan, King of Scotland. The double trust he would be braking is that first he considered the King Duncan as his "kinsman and his subject" so he had to protect him. Second, Macbeth was hosting Duncan in his castle so he had to keep it away from any threat as an implicit compromise instead of being himself the killer. In addition, Macbeth thought that King Duncan was a noble, virtuous and free of corruption person, so his dead would make people feel very sad which filled Macbeth with a lot of guilt even though ambition made him doubt.