You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Catherine Wright. I want to cancel my reservation due to sudden postpone of my plan. Can you help me?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you for availing us.

USER: Thank you for your response.