You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Nancy Anderson, can you please assist me in booking my flight ticket to LAX from OAK to attend an event?

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, my travel dates are June 14 and June 16.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any of the class.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight for my journey.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I am looking for a flight which can return back to my location in the afternoon.

ASSISTANT: Nancy Anderson, I am sorry to inform you that there is no flight available at your request.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: You are welcome. Thank you for contacting us.