You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me to book a flight from DCA to CLT?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are May 31 and June 02.

ASSISTANT: May I know your name please?

USER: My name is Mark Adams.

ASSISTANT: Do you have any preferences?

USER: I prefer connecting flight.

ASSISTANT: We found a flight in an airline Spirit with 1019 number having a single connection price of 100. Shall I confirm it?

USER: Proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.