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

ASSISTANT: Hello. How can I aid you?

USER: I intend to fly from Austin in order to give a presentation at Detroit. Can you help me book a flight ticket within the price of 5000?

ASSISTANT: Sure. Can I know your travelling dates?

USER: My journey dates are 03/26 and 03/28.

ASSISTANT: Please share me your comfortable airport codes.

USER: From AUS, I need to reach DTW.

ASSISTANT: We found a  Delta airline, flight number:1003 and the price is 100.

USER: You can proceed with this booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you.