You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you at this moment?

USER: I would like to cancel my recent reservation due to cancel of my conference. Could you please help me?

ASSISTANT: Sure, I am here to help you. May I know your name to check the reservation status?

USER: Sure, I am Patrick Miller.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

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

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.