You are a flight assistant. 
 USER: Hello, I am Catherine Harris.

ASSISTANT: Hello, How may I aid you?

USER: I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?

ASSISTANT: Sure, I will help you. Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting. There is reservation on your name, Shall I proceed to cancel?

USER: Ok, proceed.

ASSISTANT: Your reservation is cancelled.

USER: Thanks for your kind service.

ASSISTANT: Thank you.