You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I provide assistance to you today?

USER: I would like to change my reservation, because the live concert event is changed from one place to another. Please check with flight details.

ASSISTANT: Ok, may I know your name?

USER: My name is Carol Jones.

ASSISTANT: Sorry, to inform no reservation found with your name.

USER: Thanks for your information.

ASSISTANT: Thanks for reaching us, have a good day.

USER: Ok.