You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Stephen Roberts.

ASSISTANT: How can I assist you at this moment?

USER:  I am searching for the flight from IAD to reach AUS. Can you please assist me?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: Sure, I want to fly on 07/12 and 07/14.

ASSISTANT: Wait a moment please.

USER: Sure, take your time.

ASSISTANT: Southwest airlines is available on this route with a ticket fare of 100, shall I book your ticket?

USER: Ok, please reserve my ticket.

ASSISTANT: Stephen Roberts, your ticket is booked with flight number 1015.

USER: Thank you so much for your help.

ASSISTANT: Thank you, have a safe journey.