You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to attend a Seminar in San Francisco. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Aug 01 and Aug 03.

ASSISTANT: May I know your name please?

USER: My name is Karen Perez.

ASSISTANT: Could you please provide the airport codes?

USER: My airport codes are JFK and SFO. I prefer single connecting flight.

ASSISTANT: Do you have any requirements?

USER: No.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for approaching us.