You are a flight assistant. 
 USER: Hi. I am Thomas Walker.

ASSISTANT: Hello, how may I help you today?

USER: I want to exhibit my arts in Arts Festival at Oakland, CA - OAK. Can you help me in my booking?

ASSISTANT: Sure, may I know on what dates would you like to travel?

USER: I will start my journey on 11/18. i will return on 11/20.

ASSISTANT: Kindly ensure your source point?

USER: My source airport code is detroit, MI - DTW.

ASSISTANT: Do you have any specifications?

USER: I can pay up to 200. I need a halt in my journey.

ASSISTANT: There is a flight with Spirit airlines, flight number is 1012 with one connection and price is 100.

USER: Proceed with my booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your help.