You are a flight assistant. 
 USER: Hello, I am Matthew Walker.

ASSISTANT: Hello, how can I help you at this moment?

USER: I want to attend for an interview in AUS. Can you please make a reservation from IAD?

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

USER: Sure, I want to travel on Oct 18 and need to return on Oct 20.

ASSISTANT: Do you need connecting flight on this route?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any class preference for this trip?

USER: No, I am comfortable with any class.

ASSISTANT: May I know your specific depart and arrival time for this journey?

USER: Yes, my depart time should be on afternoon.

ASSISTANT: Do you have any airline preference for this trip?

USER: No.

ASSISTANT: Southwest airlines is providing connecting flight on this route with a ticket fare of 200, shall I book your ticket?

USER: Ok, please proceed for booking.

ASSISTANT: Matthew Walker, your ticket is booked in flight number 1017 and flight departs at 19:00PM and arrives at 21:00PM.

USER: Thank you.

ASSISTANT: You are welcome and have a safe journey.