You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I amend you?

USER: I need to cancel my reservation due to sudden demise of my aunt. Please help me with it.

ASSISTANT: Sure. May I know your name?

USER: I am Stephen Baker.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, There is no reservation found with your name.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you.