You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My concern is to booking a flight with 1 connection limit to SEA.

ASSISTANT: Please provide your travel dates.

USER: Ok, please book a ticket for the dates Sept 18 and Sept 20.

ASSISTANT: May I know your source airport code?

USER: Yes, my source location is DCA.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a economy class flight.

ASSISTANT: May I know your name?

USER: My name is Rachel Jone.

ASSISTANT: Flight-1017 is available in Southwest airlines with single connection and the ticket fare is 200. Can I proceed?

USER: Ok, please book.

ASSISTANT: Your booking is confirmed.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.