You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I need to book a flight ticket from ATL to LAX, Can you please help me for booking?

ASSISTANT: May I know your travel dates?

USER: I would like to travel on 06/03 to return on 06/05.

ASSISTANT: Do you have any connecting limit preferences?

USER: I need a connecting flight.

ASSISTANT: Is there any other concern?

USER: I need a economy class.

ASSISTANT: May I know your name please?

USER: Stephen Edwards here.

ASSISTANT: No flights as per your preferences at the moment.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.