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

ASSISTANT: Hello. How may I assist you?

USER: I need to amend my reservation due some issues, can you help me out?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please? Emily Campbell, we regret to inform you that there is no reservation found on your name in our records.

USER: My trip dates are from Mar 4th till Mar 6th. Oh! that's ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for choosing us.