You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I want to cancel my recent reservation, Can you please help me in that?

ASSISTANT: Sure, may I know your name to check further?

USER: My name is Robert Brown.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT:  Sorry, no reservation found on your given name in our database to cancel it.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for contacting us.