You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know what kind of service you are looking for?

USER: I need to book a flight ticket from CLT to JFK, can you help me in booking a flight ticket?

ASSISTANT: Sure, we are perky to assist you. May I know on which dates you are planning to start and return?

USER: Sure, my journey dates are Nov 27 and Nov 29.

ASSISTANT: Do you need any layover in between journey?

USER: I prefer a direct flight.

ASSISTANT: May I know your good name please?

USER: Sure, Virginia Hall here.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for remaining so positive, we are unable to provide you flight in between your journey points due to terminal up gradation at your destination airport.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for your presence. We hope to serve you again.