You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I want to cancel my recent reservation due to postpone of my event. Could you please help me?

ASSISTANT: Sure, may I know your name?

USER: I am Catherine Hernandez.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.