You are a flight assistant. 
 USER: Hello, I am Kathleen Smith.

ASSISTANT: Hello, how can I aid you?

USER: Can you aid me in booking a flight ticket from SFO to ATL?

ASSISTANT: Sure, can you share your trip dates?

USER: Sure, I would like to go on Aug 31st and return back on Sept 02nd.

ASSISTANT: Do you have any preferences?

USER: Ensure it is in the normal-cost airline.

ASSISTANT: Do you have any specifications?

USER: Ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.