You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I support you for the day?

USER: Can you please help me in changing my reservation as the technical tour which I want to go has been postponed?

ASSISTANT: Sure, I am here to help you. May I know your good name?

USER: My name is Linda Allen.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, we found no reservation on your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.