You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Can you help me to book a flight ticket from DEN to OAK?

ASSISTANT: May I know your trip dates?

USER: My travelling dates are 16 to 18 of July.

ASSISTANT: Do you prefer any connections?

USER: I need a connecting flight.

ASSISTANT: May I know your specifications?

USER: I would like to return in the morning.

ASSISTANT: Please share your name.

USER: I am Jason Anderson.

ASSISTANT: Hawaiian airlines providing a connected flight in economy class.

USER: Please proceed to booking.

ASSISTANT: Your booking is done.

USER: Thanks for helping me.

ASSISTANT: Thank you.