You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please reserve me a flight ticket from DCA to PHX.

ASSISTANT: Sure, I am happy to help you. May I know your travelling dates?

USER: My trip dates are Dec 04 and Dec 06.

ASSISTANT: Do you have any stopover in between journey?

USER: Yes, I prefer lay by in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Deborah Green.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 100 and depart time is 7:00 hours, arrival time is 13:00 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 1024.

USER: Thank you.

ASSISTANT: Thank you for contacting us.