You are a flight assistant. 
 USER: Hi. I am Emma Campbell.

ASSISTANT: Hello, how may I support you today?

USER: Owing an emergency want to change my reservation, can you help me with it?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found with your name to change.

USER: That's ok.

ASSISTANT: Thanks for approaching us.

USER: Thank you for the response.