You are a flight assistant. 
 USER: Hello, I am Nicole Martin.

ASSISTANT: Hello, how may I assist you today?

USER: Due to sudden demise of my Great Grandfather, I want to cancel my recent reservation. Can you help me with this?

ASSISTANT: Sure, we are glad to help you with cancellation. Please wait for a while.

USER: Sure.

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

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for choosing us.