You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to some personal work, I want to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, may I know your good name?

USER: Sure, I am Jennifer Smith.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: Ok. Thank you for your service.

ASSISTANT: Thank you for opting us.