You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Amanda Taylor.

ASSISTANT: How may I assist you?

USER: Can you please help me in changing my existing reservation to San Francisco?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: Wait a moment please, let me check with that.

USER: Sure, I will wait for your information.

ASSISTANT: Amanda Taylor, we regret to inform you that there is no reservation found on your name in our records.

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

ASSISTANT: Thank you for approaching us.