You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you. May I know your name?

USER: My name is Stephen Robinson.

ASSISTANT: I found you reservation and cancelled it successfully.

USER: Thanks for helping me.

ASSISTANT: Thank you for opting us.