You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at present?

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

ASSISTANT: Sure, we are here to help you with cancellation. To proceed further, let me know your name.

USER: Sure, I am Catherine Martin.

ASSISTANT: Thanks for providing your name, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, there was no reservation found on your specified name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.