You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I have planned to book a plane ticket from IAD to JFK, can you assist me?

ASSISTANT: Sure, may I know your good name?

USER: Christopher Wright.

ASSISTANT: Could I have your trip dates, please?

USER: My preferred dates are Sep 13th and Sep 15th.

ASSISTANT: Do you have any specifications?

USER: I need single connection between my trip.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a connecting flight 1007 from Spirit airline has fare 100. Shall I proceed?

USER: Proceed.

ASSISTANT: Your ticket has been confirmed in business class.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.