You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Carolyn Turner.

ASSISTANT: How may I help you today?

USER: I need to cancel my recent reservation due to postpone of my demo class of Stress Management. Could you please help me in doing that?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for your time. We could not find any active reservation in your given name.

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

ASSISTANT: Thank you for opting us.