You are a flight assistant. 
 USER: Hello, I am Barbara Smith.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, please wait for a while. I will check your reservation status.

USER: Ok.

ASSISTANT: There is no reservation found under your name in our database to do modifications in that.

USER: Ok, no issues. Thanks for your help and support.

ASSISTANT: Thank you for choosing us.