You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: I need to book a flight ticket from OAK to DEN, Can you please help me for booking?

ASSISTANT: Sure, can you share me your travelling dates?

USER: I would like to travel on 12/24 to return on 12/26.

ASSISTANT: Do you have any airline preference?

USER: I need a direct flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name please.

USER: Justin Williams.

ASSISTANT: I found a flight with the price of 100 and 0 connection. shall I proceed to booking?

USER: Ok, proceed for booking.

ASSISTANT: Your ticket is booked with the flight- 1009.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.