What are they? First, be dispassionate; emotion destroys negotiations. You must force yourself to be calm.
Second, prepare, even for five seconds. Collect your thoughts.
Third, find the decision-maker. Here, it was the pilot. There was not a second to waste on the gate agent, who was not about to change company policy.
Fourth, focus on your goals, not on who is right. It didn’t matter if the connecting airline was late, or wrong in not calling ahead to the gate. The goal was to get on the plane to Paris.
Fifth, make human contact. People are almost everything in a negotiation.
And finally, acknowledge the other party’s position and power, valuing them. If you do, they will often use their authority to help you achieve your goals