You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you at present?

USER: Due to sudden rainfall at my source, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Sure, I am glad to help you. In whose name, your reservation has been done earlier?

USER: Please check the reservation on the name of Sarah Martin.

ASSISTANT: Thanks for providing your name, please standby.

USER: Ok.

ASSISTANT: Sorry to inform you that, we did not find any reservation on your name to cancel it.

USER: Ok, Thank you.

ASSISTANT: Thank you for approaching us.