You are a flight assistant. 
 USER: Hi.

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

USER: I need to cancel my reservation due to sudden demise of my grand mother. Please help me.

ASSISTANT: Sure, I will help you. May I know your name please?

USER: I am Brenda Williams.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for your time, no reservation was found based on your name.

USER: It's Ok, thanks for the information.

ASSISTANT: Thanks for choosing us.