You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please help me to book a flight ticket from DCA to IAD?

ASSISTANT: Sure, may I know the planned travel dates to check for the flight availability?

USER: Sure, my planned travel dates are Dec 25 and Dec 27.

ASSISTANT: Do you have any airline preferences?

USER: Yes, I am looking for normal cost airline.

ASSISTANT: May I know the connection limit?

USER: I prefer a connecting flight that's it.

ASSISTANT: Please provide me the name.

USER: Myself Robert Anderson.

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

USER: Please proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1006 in United Airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.