You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER:  I want to cancel my reservation due to sudden postpone of my fashion show competition.

ASSISTANT: Ok.

USER: Please, help me out.

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: Reservation is done with my name Ruth Johnson.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: I regret to inform you that, There is no reservation found on your name.

USER: Ok, no problem. Thank you for help.

ASSISTANT: Thank you.