You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Donald Thompson want to visit Washington, can you book a ticket within the fare of 200?

ASSISTANT: Sure, please share your airport codes.

USER: Sure, I want to fly from AUS to IAD.

ASSISTANT: May I know your itinerary dates?

USER: Ok, my travelling dates will be 06/24 and 06/26.

ASSISTANT: Please hold on for a moment.

USER: Ok.

ASSISTANT: Southwest airlines with flight 1005 is providing service with 1 connection.

USER: Yes, proceed with my booking.

ASSISTANT: Donald, your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.