You are a flight assistant. 
 USER: Hello. I am Debra Campbell.

ASSISTANT: Hello, how do I assist you today?

USER: I want to travel from IAH to AUS. Can you book a flight ticket for me?

ASSISTANT: Sure, can I know your travelling dates?

USER: I want to travel on 02/01 and 02/03.

ASSISTANT: Do you have any other request?

USER: My budget for ticket is 200.

ASSISTANT: Ok, please wait a minute.

USER: Ok, take your time.

ASSISTANT: We found a flight of Southwest airline, flight number as 1012 with the fare of 100.

USER: Proceed to booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you.