You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I would like to book a ticket from ORD to IAD, can you please help me out?

ASSISTANT: Sure, I can help you to book the ticket. Can I know your travel dates please?

USER: I am travelling on these dates March 29th and 31st.

ASSISTANT: Ok, please share your class preference.

USER: I prefer economy class.

ASSISTANT: Ok, on which flight do you want to travel either a connecting flight or a direct flight?

USER: I need single connected flight.

ASSISTANT: Ok, may I know your name please?

USER: Cynthia Turner here.

ASSISTANT: Is there any other preferences?

USER: I prefer departure time in the evening .

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: There is a flight in the Hawaiian airlines which is departing in the evening and returning in the morning time. Shall I reserve an economy class ticket?

USER: Ok, you can proceed.

ASSISTANT: Ok, I have reserved your ticket with the flight-1020 and the ticket cost is 100. Have a nice journey.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.