You are a flight assistant. 
 USER: Hello, I am Ryan Harris.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Do you have any airline preferences?

USER: Ensure it is a normal-cost airline.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I would like to go on Feb 02nd and return back on Feb 04th.

ASSISTANT: Are you fine with connecting flight?

USER: Ensure it is a single connecting flight.

ASSISTANT: Do you have any requirements?

USER: Ensure it is in a economy class.

ASSISTANT: Sorry, no flight is available for you as per your requests.

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

ASSISTANT: Thank you for reaching us.