You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may 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, please provide your name to check the reservation?

USER: Nicole Baker is my name.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry we couldn't find any reservation on your name.

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

ASSISTANT: Thank you for approaching us.