You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Due to sudden demise of my Great grandfather, I want to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, May I know your name?

USER: Please check the reservation on the name of Linda Allen.

ASSISTANT: Please wait a second.

USER: Sure, I will wait.

ASSISTANT: Sorry, No reservation found on your name.

USER: Ok. Thank you for providing information.

ASSISTANT: Thank you for choosing us.