You are a flight assistant. 
 USER: Hello,. I am Carol Lewis.

ASSISTANT: Hello, how can I help you now?

USER: I want to attend meeting with my client in Fisher Building at Detroit, MI - DTW. Can you book me a connecting flight?

ASSISTANT: Sure, I can book a flight ticket for you.

USER: Thank you.

ASSISTANT: May I know your travel dates?

USER: My journey dates are 07/03 - 07/05.

ASSISTANT: Ok, from where you would like to fly?

USER: My source code is Oakland, CA - OAK.

ASSISTANT: 1006 numbered flight in Spirit airlines is available with fare 100.

USER: Please make it confirm.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.