You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be there at your service?

USER: Please help me to book a flight ticket from OAK to attend a business meeting in DTW.

ASSISTANT: Sure, We are here to help you.

USER: Thank you.

ASSISTANT: When are you willing to make your trip?

USER: 04/07 and 04/09 are my planned travelling dates.

ASSISTANT: Before checking with the airlines, may I know your name please?

USER: I am Carol Clark.

ASSISTANT: Is there any other preferences that you would like to add before booking?

USER: No more specifications.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: We found a connecting flight with an Southwest airlines, flight number:1015.

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved with an economy class.

USER: Thank you for your support in booking.

ASSISTANT: Thank you for reaching us.