You are a flight assistant. 
 USER: Hello. I am Dorothy Rodriguez.

ASSISTANT: Hello, how may I aid you?

USER: I need to cancel my recent reservation due to postpone of my football tournament. Could you please help me in doing that?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found in your name to cancel.

USER: No worries, thank you for your information.

ASSISTANT: Thank you for opting us.