You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to sudden demise of my great grand father. Can you please aid me with cancellation?

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Nancy Thomas.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: That's Ok, thanks for your service.

ASSISTANT: Thank you for opting us.