You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to travel from BOS to ORD. Can you help me to book a flight ticket?

ASSISTANT: Sure, I will help you. When would you like to plan your journey?

USER: I want to fly in the flight on Dec 23 and Dec 25.

ASSISTANT: May I know your name please?

USER: Carolyn Adams.

ASSISTANT: Do you need a connecting flight?

USER: I want to travel in a connecting flight.

ASSISTANT: May I know your other requirements?

USER: No.

ASSISTANT: I found an economy class in United Airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Proceed to booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1011.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.