You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you help me to book a ticket from BOS to IAD?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: Ok, please book a ticket for the dates Dec 28th and 30th.

ASSISTANT: May I know your name for further process?

USER: My name is Timothy Parker.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please hold on a moment.

USER: Please book a connecting flight.

ASSISTANT: Ok. AA flight available with connection limit 1 and fare is 100, shall I confirm this economy class flight?

USER: Ok, thank you for providing the best flight. Please book a ticket for me for that flight.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1011.

USER: Thank you for assisting me.

ASSISTANT: You are welcome Timothy Parker.