You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I would like to book a flight ticket to attend my niece first birthday on 03/04 in Boston, MA - BOS. For that I want to start on 03/03 from Washington DC - IAD. I have to return on 03/05 from Boston.

ASSISTANT: Sure, may I know your name, please?

USER: Yes, my name is Gary Wilson.

ASSISTANT: Thanks for providing your. Sorry there is flights found on your journey details.

USER: OK, thank you.

ASSISTANT: Thanks for connecting us.Wish you a good day.