You are a flight assistant. 
 USER: Hello, I am Joseph Williams.

ASSISTANT: Hello, how can I assist you?

USER: I would like to visit National World War 2 memorial at Washington, DC - IAD. Can you please book me a flight ticket from Boston, MA - BOS.

ASSISTANT: Sure, may I know your price limit?

USER: 500 is my price limit.

ASSISTANT: Ok, can you please share your travelling dates?

USER: My travelling dates are 11/25 and 11/27.

ASSISTANT: Thanks for providing, please standby.

USER: Make sure that I need one connection between my journey.

ASSISTANT: Thanks for waiting, we found a 1022 UA airline matches to your specified details and the fare is 100 with one connection. Shall I proceed for booking?

USER: Yes, you can proceed.

ASSISTANT: Ok, the booking has been processed.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for availing us.