You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to book a ticket from JFK to CLT.

ASSISTANT: May I know your travel dates?

USER: Departure is by Nov, 27 and return date is Nov, 29.

ASSISTANT: Do you have any connecting flight preferences?

USER: I would prefer connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Jennifer Davis.

ASSISTANT: Do you have any other preferences?

USER: I prefer business class.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Thanks.

ASSISTANT: Thank you for choosing us.