You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what sort of help are you seeking from us?

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

ASSISTANT: Sure, I am euphoric to help you with booking. Can you please forward your journey dates?

USER: Sure, my scheduled dates are Jun 4 and Jun 6.

ASSISTANT: Do you prefer any way station in between journey?

USER: I prefer a direct flight.

ASSISTANT: May I know your good name please?

USER: Sure, Kevin Clark 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.

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