You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may 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, may I know your travelling dates please?

USER: My travelling dates are Nov 02 and Nov 04.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are OAK and SFO.

ASSISTANT: Do you have airline specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Janet Hernandez. I want to travel in economy class flight.

ASSISTANT: Do you have any other specifications?

USER: I need direct flight.

ASSISTANT: Janet Hernandez, there are no flights available in you route.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.