You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Lisa Collins here.

ASSISTANT: How can I aid you at this moment?

USER: I would like to visit Detroit for a business meeting, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I will aid you with that.

USER: Thank you.

ASSISTANT: Can you please let me know your travel dates for booking flight ticket?

USER: I am planning to leave on 05/08 and return would be on 05/10.

ASSISTANT: May I know your preferable airport code name for further process?

USER: Sure, I want to travel from IAD to DTW.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Ok, take your time.

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 AA airlines. Shall I proceed with this?

USER: Yes, you can proceed with booking.

ASSISTANT: I have confirmed your flight ticket, flight number is 1012.

USER: Thank you for your help in booking of my ticket, have a great day.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Welcome.