You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what sort of help are you seeking from me?

USER: Could you please book a flight ticket with a normal-cost to Los Angeles?

ASSISTANT: Can you please share your travel dates that you have planned?

USER: I have planned to travel on Nov 17 and return back on Nov 19.

ASSISTANT: Ok, may I know your boarding and landing airports with codes?

USER: My journey airport codes are ATL and LAX.

ASSISTANT: Do you prefer any way station in between journey?

USER: Yes, I prefer a halt.

ASSISTANT: May I know your good name please?

USER: My name is Kathleen Thompson.

ASSISTANT: Thanks for your details, there are no flights available at this moment matching your particulars.

USER: No problem, thank  you for the information.

ASSISTANT: Thanks for choosing us.