You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I need you to book a flight ticket from OAK to DTW, please help me.

ASSISTANT: Sure, let me know your travelling dates.

USER: June 21 and 23, are my planned travelling dates.

ASSISTANT: Do you want connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: Nothing much to state.

ASSISTANT: May I know your name please?

USER: Gary Hill here.

ASSISTANT: We found a Southwest airline, flight number: 1012, price: 200 with one connection.

USER: Ok, please book the ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you, have a good day.