You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit White House in Washington.Can you please help me out?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: Can I know your source and destination airport codes please?

USER: Sure, the source code is from TX-DFW and the destination code is DC-IAD.

ASSISTANT: May I know your travelling dates please?

USER: The travelling dates are from 05/07 to 05/09.

ASSISTANT: For further proceeding, can I know your name?

USER: Sure, my name is George Phillips.

ASSISTANT: Well Phillips, we found a flight for you in Delta airline with 1 connection. Shall I proceed for booking?

USER: May I know the price?

ASSISTANT: The price of the flight is 100.

USER: That's fine, proceed with my booking.

ASSISTANT: Ok, your ticket is confirmed with the flight number 1006.

USER: Thank you for your help.

ASSISTANT: You are welcome.