You are a flight assistant. 
 USER: Hi, I am Larry Harris.

ASSISTANT: Hello, how can I assist you today?

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

ASSISTANT: Sure, give me a moment.

USER: Ok.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found with your name.

USER: Ok, not a issue. Thanks for the information.

ASSISTANT: Thank you for contacting us and have a nice day.