You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket from OAK to MSP. Could you help me in booking?

ASSISTANT: Sure, can I know your travelling dates?

USER: My travelling dates are from Feb 19-21.

ASSISTANT: On which name should I reserve the flight ticket?

USER: Melissa Lee here.

ASSISTANT: Do you have any connection limit?

USER: I need 1 connecting flight.

ASSISTANT:  Do you have any other specifications?

USER: I prefer for business class.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: There is a flight with one connection and the price is 800 in Southwest airlines, can I proceed with the reservation in business class?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved with the flight number 1019.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching our service.