You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: will you help me in booking the flight ticket from IAH to IAD?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: My travelling dates are Dec 23 and Dec 25.

ASSISTANT: Do you have any connection limit preference?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications for this journey?

USER: No, thank you for asking.

ASSISTANT: May I know your good name please?

USER: Myself Christine Davis.

ASSISTANT: Southwest Airlines is providing direct flight on this route with a ticket fare of 100 and flight departs at 22:00 hours and arrives at 4:00 hours, shall I book your ticket in this flight?

USER: Sure, you can proceed with the booking.

ASSISTANT: Christine Davis, your ticket is booked in economy class of flight number 1016.

USER: Thank you for helping me.

ASSISTANT: You are welcome and have a safe journey.