You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I need to cancel my recent reservation due postpone of my basketball champion final match. Could you please help me in doing that?

ASSISTANT: Sure, If you provide your name it will be more helpful to sort out.

USER: Sure, I am Elizabeth Davis.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: I could not find any reservation with your name. Thanks for reaching us.

USER: No issues, thank you for your valuable information.