You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am Dennis Carter.

ASSISTANT: Nice meeting you Dennis.

USER: Nice to meet you too. I want to go Detroit next month, can you please book a flight ticket for me?

ASSISTANT: Sure, I will help you. Can you please provide your planned dates of travelling?

USER: Thanks, I want to take off on 03/19 and book my return ticket too on 03/21.

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

USER: I want to fly from AUS and destination airport is DTW.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by Delta airlines. Shall I proceed with this?

USER: That's great, please confirm this flight ticket for me.

ASSISTANT: Sure, your ticket has been booked in flight number 1020.

USER: Thank you for your service.

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