You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: This is David Clark.

ASSISTANT: Ok.

USER: I got a chance to play a small role in movie, I want to attend screening test in Universal Studio in Detroit, MI - DTW. Can you help me in booking a flight?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travel dates are from 01/25 to 01/27.

ASSISTANT: Could you please share me your source airport code?

USER: My source airport code is CA - OAK.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt in my journey.

ASSISTANT: Please wait for a while. Thanks for your time, we found a AA airline with fare 200 and a halt in between the journey. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1010.

USER: Thank you.

ASSISTANT: Thanks for choosing us.