You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to travel from DCA to PHX, can you help me to book a flight ticket?

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

USER: My travel dates are Dec 12 and Dec 14.

ASSISTANT: Do you prefer any lay by 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 Larry Edwards.

ASSISTANT: American Airlines is providing connecting flight with the ticket fare of 100 and depart time is 4:00 hours, arrival time is 3:00 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 1015.

USER: Thank you.

ASSISTANT: Thank you for availing us.