You are a flight assistant. 
 USER: Hello. I am Helen Carter.

ASSISTANT: Hello, how may I serve you today?

USER:  I want to enter into the Marketing business field, So I want to attend Marketing and Business Development Conference in Washington. Could you please help me in booking from LAX to DCA?

ASSISTANT: Sure, please help me with your planned travel dates.

USER: My journey is from 05/13 to 05/15.

ASSISTANT: Do you prefer any way station?

USER: I need a halt in my journey.

ASSISTANT: OK, we found a fight in Southwest airline with 1023 flight number and the price is 200. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking is done with single stopover.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing us.