You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book a flight ticket from ATL to ORD.

ASSISTANT: When are you planning to make your journey?

USER: I want to take off on 19 Feb and return on 21 Feb.

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

USER: I need a connecting flight.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Andrew Adams.

ASSISTANT: Delta Airlines is providing connecting flight with the ticket fare of 100 and depart time is 22:00 hours, arrival time is 17:00 hours. Shall I proceed?

USER: Please proceed to booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1002.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.