You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you for the day?

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

ASSISTANT: Ok.

USER: Can you please help me in that?

ASSISTANT: Sure, I will help you. May I know your name to check reservation?

USER: I am Shirley Robinson.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is no reservation found with your specified name.

USER: Ok, I think my brother was already cancelled my reservation. Thank you for the response.

ASSISTANT: Thank you for approaching us.