You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, May I know your name?

USER: I am John Scott.

ASSISTANT: How may I help you?

USER: As my cousin's wedding is postponed, So I need to cancel my recent reservation.

ASSISTANT: Ok, Please wait a moment I will check and let you know the details.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: Thank you.

ASSISTANT: Thank you for reaching us.