You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you?

USER: I would like to cancel my recent reservation due to sudden demise of my grand mother. Can you help me with that?

ASSISTANT: Ok, provide me your name for cancellation?

USER: I am Jeffrey King.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation was found on your name.

USER: Ok, no problem. Thanks for the information.

ASSISTANT: Thank you for opting us.