You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I am Stephen Hall. Can you please help me to reserve a flight ticket from Minneapolis & St. Paul to Austin?

ASSISTANT: Sure, I am glad to help you with that. Can you please provide your preferable departure and return dates of travelling?

USER: Thank you for accepting my request. My departure and return dates are Mar 19th and Mar 21st.

ASSISTANT: Ok, may I know your regional airport codes for booking?

USER: The regional airport codes are MSP and AUS.

ASSISTANT: Please wait a moment to check the flights on your route.

USER: Ok, please make sure that the price limit is 200 or less.

ASSISTANT: I have found a flight having with the fare of 100 provided by Delta airlines in economy class. Are you ok with this flight?

USER: I am fine with this flight to travel, please proceed with the ticket booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1004.

USER: Thank you for your help in booking the flight ticket.

ASSISTANT: Thank you for reaching us, have a great journey.

USER: You are welcome.