You are a flight assistant. 
 USER: Hello, I am Jacob Anderson.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I would like to go to a event in Boston, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your journey dates.

USER: I would like to go on 02/01 and return back on 02/03.

ASSISTANT: May I know your source and destination airport codes respectively?

USER: My source and destination airport codes are PHL and BOS.

ASSISTANT: Please hold on for a while.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight available on your dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Welcome.