You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Emma Miller here.

ASSISTANT: How may I assist you Miller?

USER: Is this a flight booking agency?

ASSISTANT: Yes, you are at right place. How may I assist you today?

USER: I was made a reservation to Atlanta for attending a Business meeting, earlier in this week. But suddenly the organisers changed the location to Washington. Can you please help me for changing my reservation?

ASSISTANT: Sure, I will help you. Please hold on a moment to check your previous reservation status.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting. We regret that, there is no reservation found with your name in our records.

USER: Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.