Develop a Fictional Dialogue in Which Two Characters Argue Over

Develop a fictional dialogue in which two characters argue over the nature of morality.
The two characters should construct arguments and offer criticisms of one another's arguments.They can agree to disagree,or find some areas of agreement.
The dialogue should address: psychological and ethical egoism; duty-based and consequentialist theories of morality; cultural and ethical relativism; and Nietzsche's attack on morality.