You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me in booking my flight ticket from IAD to DEN?

ASSISTANT: Sure, can you please mention your departure and arrival dates of your journey?

USER: My trip dates will be Nov 17th to Nov 19th.

ASSISTANT: Do you need any layover in between  journey?

USER: I prefer a lay by.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No, thank you for asking.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: I am John Campbell.

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

USER: You can proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1016.

USER: Thank you.

ASSISTANT: Thank you for reaching us.