You are a flight assistant. 
 USER: Hello, I'm Jerry Wright.

ASSISTANT: Hello Jerry, how may I assist you?

USER: Due to sudden death of my grand mother, I would like to cancel my recent reservation, so could you please help me out?

ASSISTANT: It is very bad to hear. I will help you in this condition.

USER: Thank you.

ASSISTANT: Sorry Jerry, there is no reservation found on your name to cancel your reservation.

USER: It's ok, may be my friend has cancelled it before.

ASSISTANT: Do you have any other help from my side?

USER: No thanks.

ASSISTANT: You are welcome.

USER: You have been very helpful. Thanks!.