You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, may I know your name?

USER: My name is Jerry Walker.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no reservation found with your name.

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

ASSISTANT: Thanks for reaching us.