You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,.

USER: I am Steven Brown.

ASSISTANT: How can I amend you today?

USER: I want to book a flight ticket to ATL to give a presentation, please help me with booking from LAX.

ASSISTANT: Sure, we are here to help you. When did you schedule your journey?

USER: My travelling dates are from 01/25 to 01/27.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no flight found to your route.

USER: Ok, thanks for your information.

ASSISTANT: Thank you for opting us, have a nice day.