You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: Can you please help me in changing my existing reservation to New York? As my meeting got postponed at New York.

ASSISTANT: For changing we need your good name, Please help me with that.

USER: My name is Catherine Smith.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us.