You are a flight assistant. 
 USER: Hello. Is this Global flight ticket booking agency?

ASSISTANT: Hello. Yes, you are at right place. How can I assist you?

USER: I want to take my parents for a concert in OAK, can you book a flight ticket from SFO?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: I prefer to start on 09/12 and return back on 09/14. Ensure that the connection is 0.

ASSISTANT: Please give me a minute, I will check for the best flight on this route.

USER: Sure, get a best flight for me.

ASSISTANT: Sorry, there is no flight available with 0 connection on this route.

USER: That's so sad to hear. Anyhow thank you for your assistance.

ASSISTANT: Can I have your name, please?

USER: Sure, I am Jessica Davis.

ASSISTANT: Thank you for reaching us.