You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I aid you?

USER: I would like to change my reservation as my meeting venue got changed to another place, can you please help me out?

ASSISTANT: Sure, I am here to help you, please provide me your name.

USER: I am Nancy Davis.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation on your name.

USER: No problem, thank you.

ASSISTANT: Thank you.