You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Can you book a flight ticket for my airport codes that is from IAD to ORD?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: The trip dates are from 28 Jan to 30 Jan.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: That does not matter.

ASSISTANT: Do you prefer any specific class to travel?

USER: No.

ASSISTANT: Are you looking for any connecting flight or direct flight only you want?

USER: I prefer a stopover flight.

ASSISTANT: Can I have your good name please?

USER: I am Rachel Carter.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Delta airlines running a flight in your route with connection 1 and the ticket fare is 100. Shall I proceed with booking?

USER: I am fine with the airlines. You can book the flight ticket.

ASSISTANT: Ok, your ticket booking has done and the flight number is 1005.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.