You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you out?

USER: Please reserve me a flight ticket from IAD to DTW.

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

USER: My travel dates are July 20 and July 22.

ASSISTANT: Do you prefer any stopover in between journey?

USER: I prefer lay by in between my journey.

ASSISTANT: Is there any other specifications for you?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Thomas Jones.

ASSISTANT: American Airlines is providing connecting flight with the ticket fare of 100 and depart time is 0:00 hours, arrival time is 7:00 hours. Shall I proceed?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1006.

USER: Thank you.

ASSISTANT: Thank you for choosing us.