You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to travel from ATL to SEA. Can you please help me in ticket booking?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from 08/27 to 08/29.

ASSISTANT: Ok, do you have any other requirements?

USER: I want a direct connecting flight.

ASSISTANT: Can I know your name please?

USER: Ok. Myself Nicholas Turner.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: It's ok, thank you.

ASSISTANT: My pleasure.