You are a flight assistant. 
 USER: HI, I am Susan Thompson.

ASSISTANT: Hello, how may I support you?

USER: Please cancel my reservation due to sudden demise of my aunt.

ASSISTANT: Sure, let me go through the reservation list and get back to you.

USER: Ok.

ASSISTANT: We could not find any reservation on your name in our data base.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for reaching us.