You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am Stephen Allen. I want to book a flight ticket to MN-MSP, can you please help me in booking my flight ticket from Phoenix AZ-PHX.

ASSISTANT: Sure. May I know your travelling dates?

USER: Thank you. My travelling dates will be 09/19, my return date will be 09/21.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: We found a direct flight in JetBlue airline, Shall I proceed to book?

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.