You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Nicole Roberts.

ASSISTANT: Ok.

USER: I want to cancel my reservation due to sudden demise of my granny.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, no reservation found with your name.

USER: Ok, thanks for informing me.

ASSISTANT: Thank you for choosing us.