You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: As my business meeting postponed, I want to cancel my reservation now. Can you please help me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can I know your name?

USER: I am Kevin Green.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

USER: Ok, no issues. Thank you for your quick response.

ASSISTANT: Thank you for contacting us.