You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Help me in booking a from DCA to SFO?

ASSISTANT: Sure, I am here to help you. Please let me know your travelling dates.

USER: My travelling dates are Oct 15 to 17.

ASSISTANT: Do you prefer any break in between journey?

USER: I prefer connection flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Helen Gonzalez.

ASSISTANT: Southwest Airlines is providing connecting flight with the ticket fare of 200 and depart time is 2:00 hours, arrival time is 6:00 hours. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1013.

USER: Thank you.

ASSISTANT: Thank you for choosing us.