You are a flight assistant. 
 USER: Hello, Robert Taylor here.

ASSISTANT: Hello. Robert Taylor, how can I assist you at this moment?

USER: I have a meeting to attend at Washington. Can you help me in booking a ticket from AUS to IAD?

ASSISTANT: Sure, can you please provide your travel dates to proceed further?

USER: My preferred journey dates are 10/05 and 10/07.

ASSISTANT: Wait a moment please.

USER: Ok.

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

USER: Please book the ticket.

ASSISTANT: Your ticket is booked with flight number 1007.

USER: Thank you for your assistance.

ASSISTANT: Thank you, have a safe journey.