You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I am Christopher Turner, planning to visit New York. Can you please book me a ticket from IAH to JFK?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Let me know your connection limit.

USER: I prefer connecting flight for this trip.

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

USER: My preferable journey dates are from June 01 and June 03.

ASSISTANT: In which class would you like me to book your flight ticket?

USER: I prefer business class flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer evening return flight for this trip.

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

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.