You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: Can you please cancel my reservation due to cancellation of my interview?

ASSISTANT: Sure, may I know your name please?

USER: Helen Smith is my name.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found with your name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for approaching us.