You are a flight assistant. 
 USER: Hello. I am Karen Wilson.

ASSISTANT: Hello, how can I help you today?

USER: My father retirement event is scheduled on 09/09 so, can you please book a flight to Dallas, DFW?

ASSISTANT: Sure, may I know your source airport?

USER: Boston, MA - BOS is my source airport.

ASSISTANT: Could you please provide me your return date?

USER: Sure, my return date is on 09/11.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a connecting flight, price is 100.

USER: Perfect, you please proceed to book.

ASSISTANT: Your flight ticket has been confirmed with Hawaiian airline, flight number: 1020.

USER: Ok, thanks a lot for the help.

ASSISTANT: Thank you for choosing us.