You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I need you to book a flight ticket from IAD to DTW. Please help me.

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

USER: February 18 and 20 are my planned travelling dates.

ASSISTANT: Do you have any stopover in between journey?

USER: Yes.

ASSISTANT: Is there any other specifications for you?

USER: Nothing much to state.

ASSISTANT: Can I have your good name?

USER: Virginia Harris here.

ASSISTANT: We found a connecting flight in United Airlines with a fare of 100 which departs at 12:00 and return at 23:00. Shall I proceed for booking?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1029.

USER: Thank you very much.

ASSISTANT: Thank you for contacting us.