You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: My friend birthday party place has been changed to Orlando. Can you please change my existing reservation?

ASSISTANT: Sure, may I know your good name  to check the reservation?

USER: I am Donna Hall.

ASSISTANT: Please wait for a moment, I will check and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, no issues. Thanks for your response.

ASSISTANT: Thank you for availing with us.