You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me with cancelling my recent reservation due to postpone of my seminar?

ASSISTANT: Sure, I am here to help you. May I know your name to proceed further?

USER: I am John Martin.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, No reservation was found on your name.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.