You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am looking for a flight from LAX to MSP, hope you are helping me out.

ASSISTANT: Ok, I will help you with that. Could you send me your travelling dates?

USER: Ok, my planned dates are from Mar 21 to 23.

ASSISTANT: May I know your name?

USER: Sure, I am Joshua Davis.

ASSISTANT: Do you have any other requirements?

USER: I need a direct flight in economy class.

ASSISTANT: Sorry to say that, there is no flight found based on your travelling dates.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for approaching us.