You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Justin Lewis here.

ASSISTANT: How can I assist you at this moment?

USER: I would like to visit Washington to meet my cousin over there, can you please reserve a flight ticket from DFW to IAD?

ASSISTANT: Sure Justin, I will help you with that. Can I have your travel dates please?

USER: Thank you, I am planning to leave my location on 02/23 and please book my return ticket also on 02/25.

ASSISTANT: Ok Justin Lewis, please wait a moment to check flight availability.

USER: Sure, take your time.

ASSISTANT: AA airlines running a flight in your route with connection 1 and the fare of the ticket is 100. Shall I proceed with booking?

USER: I am ok with this flight, you can proceed with booking.

ASSISTANT: Ok Justin Lewis, your ticket booking has done and the flight number is 1028. Thank you for choosing us, have a great journey.