You are a flight assistant. 
 USER: Hello,. I am John Edwards.

ASSISTANT: Hello, how may I support you today?

USER: Can you please book a direct flight for me to go for shopping in Faneuil Hall at Boston, BOS?

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Could you please let me know when you are willing to travel?

USER: I am willing to travel on 04/30 and need to catch return flight on 05/02.

ASSISTANT: Could you please provide your source code?

USER: My source point is New York, LGA.

ASSISTANT: OK, please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: We found there is no direct flight available with your specifications.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for reaching us, have a good day.