You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I be of your service?

USER: Can you please help me to book a ticket from LAS to JFK?

ASSISTANT: Sure, we are here to make your journey comfort. Please let me know if you need a connecting flight.

USER: Yes, I need a connecting flight.

ASSISTANT: Could you please help me by providing your planned travelling dates?

USER: My travelling dates are on June 06 and June 08.

ASSISTANT: Kindly share if you have any airline preference.

USER: No, I do not have airline preference but I need a business class.

ASSISTANT: May I know your name please?

USER: My name is Jacob Brown.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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: Ok, not a problem. Thank you.

ASSISTANT: Thank you for approaching us.