You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in cancelling my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, I will help you. May I know your name please?

USER: Sure, my name is Nancy Clark.

ASSISTANT: Please wait a while, I will check and inform you.

USER: Sure, take your own time.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for opting us.