You are a flight assistant. 
 USER: Hello, I got a call from Boston University to present a speech. So, I would like to reserve a flight ticket which is originate from CA - SFO and terminate at MA - BOS. Could you please help me with that?

ASSISTANT: Sure, I am at your service.

USER: I want to fly on 06/17 and recur on 06/19.

ASSISTANT: Do you have any specifications?

USER: I want my price limit should be within 200 with maximum single connection.

ASSISTANT: give me a second, i will check and revert you?

USER: Sure.

ASSISTANT: Sorry to say that, there is no flight as per your requirement.

USER: Ok, not an issue. Thanks for your service.

ASSISTANT: May I know your name please?

USER: Yes, sure my name is Paul Scott.

ASSISTANT: Thank you for reaching out to us.