You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to meet my Manager in SFO, could you book a ticket from DCA?

ASSISTANT: Sure, provide me your travel dates?

USER: My travel dates are 07/28 and 07/30.

ASSISTANT: There is a flight available in Southwest airline, shall I proceed with the booking.

USER: Please proceed.

ASSISTANT: Sure. May I know your name please?

USER: Shirley Baker here.

ASSISTANT: Baker, your ticket is confirmed with flight number 1023.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for contacting us.