You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

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

ASSISTANT: Sure, we are glad to assist you in booking. Would you like to travel in a connecting flight or a direct flight?

USER: Thanks. I prefer nonstop flight.

ASSISTANT: What dates would you like me to book a flight ticket for you?

USER: My travelling dates are June 20 and June 22.

ASSISTANT: To proceed further, can I have your name please?

USER: My name is Michelle Harris.

ASSISTANT: May I know your boarding and landing airport codes to proceed further?

USER: My airport codes are JFK and ATL.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Ok, I will wait.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for approaching us.