You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best serve you today?

USER: Will you please help me to book a flight ticket from DEN to ORD?

ASSISTANT: May I know your travel dates?

USER: My travel dates are Jan, 2 and Jan, 4.

ASSISTANT: Do you have any other preferences?

USER: I need connecting flight and return time should be at morning time.

ASSISTANT: May I know your name please?

USER: Virginia Lee here.

ASSISTANT:  There is a flight in Hawaiian airlines with the ticket price of 100 having one connection and economy class. Can I proceed to booking?

USER: Please proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1019.

USER: Thank you.

ASSISTANT: Thank you for choosing us.