You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to fly from IAD to BOS. Can you help me in booking?

ASSISTANT: Sure, please share your journey dates?

USER: My travelling dates are from Dec 10 to Dec 12.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Is there any class preferences?

USER: I prefer economy class.

ASSISTANT: We found a flight in Hawaiian airlines, flight number is 1013 with single connection and price is 200 economy class. Shall I proceed?

USER: Ok, you can proceed.

ASSISTANT: May I know your good name?

USER: My name is Carol Moore.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.