You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

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

ASSISTANT: Sure, I am glad to help you out in booking the flight ticket. May I know your travelling dates please?

USER: My travelling dates are Aug 31 and Sep 02.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are ATL and OAK.

ASSISTANT: Do you need any airline specifications?

USER: No.

ASSISTANT: Can I know your connection limit?

USER: I would prefer single connecting flight.

ASSISTANT: Can I know are you looking for time preference?

USER: No, I don't have any other preferences.

ASSISTANT: Sorry, there are no flights found.

USER: Anyway, thanks for the information.

ASSISTANT: Can I confirm your name please?

USER: My name is Deborah Wilson.

ASSISTANT: Thank you for reaching us.

USER: Welcome.