You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I am here to help you. May I know your name please?

USER: Sure, I am Joseph Hall.

ASSISTANT: Thanks for your name, please wait.

USER: Ok, I will wait for your response.

ASSISTANT: Thank you for waiting, no reservation was found on your name to change.

USER: Ok, Thank you.

ASSISTANT: Thank you for visiting us.