You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, we are happy to help you. Can you please let me know your travelling dates?

USER: My travel dates are Oct 18 and Oct 20.

ASSISTANT: Do you have any break in between journey?

USER: I prefer break in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Patrick White.

ASSISTANT: Frontier Airlines is providing connecting flight with the ticket fare of 100 and depart time is 5:00 hours, arrival time is 21:00 hours. Shall I proceed?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1004.

USER: Thank you.

ASSISTANT: Thank you for choosing us.