You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Help me in booking a flight form IAD to DCA?

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

USER: My travelling dates are Oct 29 to 31.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I prefer connection flight.

ASSISTANT: Are there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Betty Green.

ASSISTANT: Hawaiian Airlines is providing connecting flight with the ticket fare of 300 and depart time is 13:00 hours, arrival time is 12:00 hours. Shall I proceed?

USER: Proceed.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1009.

USER: Thank you.

ASSISTANT: Thank you for choosing us.