You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Janet Harris here.

ASSISTANT: What service do you need from our agency?

USER: Can you book a flight ticket in economy class for my business trip to Washington?

ASSISTANT: Sure, I am here to assist you with that. Can you please tell me your nearest airport codes?

USER: The airport codes are from EWR to IAD.

ASSISTANT: Ok, on which dates you are willing to travel?

USER: The travel dates are from Dec 24 to Dec 26.

ASSISTANT: Is there any timing concern?

USER: No.

ASSISTANT: Ok, do you have any other requirements?

USER: I prefer a stopover flight.

ASSISTANT: There is a direct flight in the Spirit airlines with the ticket cost of 1029. Shall I proceed to book a flight ticket which is an economy class type?

USER: I am fine with the airlines and you can book it.

ASSISTANT: Apologies, the flight number is 1029 and the ticket cost is 100. I have booked your ticket.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for approaching us.