You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: As my meeting got postponed with my client at New York, can you please help me in changing my existing reservation to New York?

ASSISTANT: Please may I know your name?

USER: Sure, the ticket has been reserved on the name Ruth Jones.

ASSISTANT: Please wait a while.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, we have not found any reservation on your name.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for contacting us.