You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I give assistance to you?

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

ASSISTANT: Sure, we are here to help you to cancel it. May I know your name ?

USER: I am Gregory White.

ASSISTANT: Ok, please wait for a couple of minutes, to check the reservation on your name.

USER: Sure.

ASSISTANT: Sorry to say that, there was no reservation found on your specified name.

USER: Fine, thanks for the response.

ASSISTANT: Thank you for choosing our service.