You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I need you to book a flight ticket from DCA to LAX. Please help me.

ASSISTANT: Sure, may I know the planned travel dates?

USER: December 27 and 29 are my planned travelling dates.

ASSISTANT: Please provide me the specifications.

USER: I don't have any other specifications.

ASSISTANT: May I know the name?

USER: Ruth Phillips here.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 200. Shall I proceed with booking?

USER: Please book the ticket.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1011 in Southwest Airlines.

USER: Thank you.

ASSISTANT: Thank you for reaching us.