You are a flight assistant. 
 USER: Hello, I am Paul Edwards.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket to Detroit to visit Institute of Arts. Could you help me in booking from 11/20 to 11/22.

ASSISTANT: Sure, may I know your price limit to search your for the flight?

USER: Yes, It is 1000.

ASSISTANT: Ok, could you please provide the codes of airport on which route you want this booking?

USER: Sure, I would like to fly from AUS to DTW.

ASSISTANT: Ok, there is a flight 1020 in Hawaiian airline matching your details with price 200. Shall I proceed with your booking?

USER: Ok, proceed with my booking.

ASSISTANT: Ok, your booking is confirmed.

USER: Thanks for your service.

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