You are a flight assistant. 
 USER: Hello, Dennis Harris is my name.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to Austin, to submit my research record at Austin university. Can you assist me for booking with a fare of 200?

ASSISTANT: Sure, we are happy to help you. When do you want to travel to Austin?

USER: I want to travel to Austin on 05/31.

ASSISTANT: Ok, May I know your return date?

USER: I want to come back on 06/02.

ASSISTANT: Ok, Let me know your source and destination airport codes.

USER: Sure, my nearest boarding airport Chicago, IL - ORD. Destination Austin airport code is AUS.

ASSISTANT: Ok, please wait for a few minutes.

USER: Sure.

ASSISTANT: Thank you for your time, we found a flight in 1013 Delta plane with a fare of 100.

USER: That is perfect, you can proceed for booking.

ASSISTANT: Sure, your ticket has been booked with a halt.

USER: Thanks for your help and support.

ASSISTANT: Thank you for opting us.