You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Actually my IEEE examination got cancelled so that I want cancel my recent reservation, can you help me?

ASSISTANT: Sure, I will help you. Could I have your name please?

USER: Sure, I am Dennis Hall.

ASSISTANT: I am very sorry for the inconvenience, I didn't find any reservation under your name.

USER: Ok, no problem.

ASSISTANT: Do you need any other help?

USER: No, thank you for your information.

ASSISTANT: You are welcome. Thank you for approaching us.