You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please help me in booking a flight ticket from Philadelphia, PHL to reach New York, JFK?

ASSISTANT: Sure, we will help you in that.

USER: Thank you.

ASSISTANT: Can you please let me know your preferred dates of travel?

USER: My journey dates are from Aug 15 to Aug 17.

ASSISTANT: Is there any connection limit?

USER: Usually I prefer direct flight, If it is not there please proceed with single stopover flight.

ASSISTANT: Do you have any specifications?

USER: I prefer to travel in only economy class flight.

ASSISTANT: May I know your name for further process?

USER: My name is David Brown.

ASSISTANT: Please wait a minute, I will search a best flight for you and get back to you.

USER: Sure.

ASSISTANT: Sorry David Brown, We could not provide you the flights at this moment, due to the run way problem at your destination airport.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.