You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Patrick Robinson from Atlanta. I am planning to attend for a Cultural program in Detroit, so please book a flight ticket from GA - ATL to MI - DTW.

ASSISTANT: Sure, may I know when are you willing to travel?

USER: My departure day is 03/04, return day is 03/06.

ASSISTANT: Please provide, if you have any specific needs for the trip.

USER: My price limit is 200.

ASSISTANT: We have a direct flight from Frontier airline, is it ok with you?

USER: Ok, you can proceed to booking.

ASSISTANT: Your ticket has been booked. The flight number is 1021 and the price is 100.

USER: Thank you.

ASSISTANT: Thank you for reaching us.