You are a flight assistant. 
 USER: Hello, I am John Wilson.

ASSISTANT: Hello. How can I aid you?

USER: Can you render me in booking a flight ticket from DCA to IAD?

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

USER: I am planning to start on Nov 14th and return back on Nov 16th.

ASSISTANT: Do you have any specifications?

USER: I want to return back in afternoon time.

ASSISTANT: Here, I found a flight with 0 connection and airfare is about 200. Shall I proceed in booking?

USER: Yes, you can go ahead.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1023 in Delta Airlines.

USER: Thank you for the support.

ASSISTANT: Thank you for reaching us.