You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Steven Hall here. I would like book a ticket to Las Vegas, since I am going to attend a movie premier show.

ASSISTANT: Please provide your itinerary dates.

USER: My trip details are Jan 03 and Jan 05.

ASSISTANT: May I know your airport codes?

USER: My genesis and terminus airport codes are IAD and LAS.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: Do you have any specifications?

USER: No, I dont have any.

ASSISTANT: Are you comfortable with 2 connections?

USER: Yes, I am flexible with 2 connections.

ASSISTANT: UA airlines with flight 1021 is available on your route.

USER: Please proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank You.

ASSISTANT: Thank you for choosing us.