You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you help me in booking a flight ticket from DEN to EWR?

ASSISTANT: May I know your journey dates?

USER: I want to travel on 12/17, and return on 12/19.

ASSISTANT: Is there any connection preference?

USER: Yes, I need a break in my journey.

ASSISTANT: Do you have any preferences?

USER: No.

ASSISTANT: Can I know your name?

USER: I am Eric Robinson.

ASSISTANT: Direct flight is found with Delta airlines for price 200. Shall I book a ticket?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for the help.

ASSISTANT: Flight number is 1011. Thank you.