You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Stephen Smith.

ASSISTANT: How can I help you, Smith?

USER: I would like to visit Central Park at New York, please help me in booking a ticket.

ASSISTANT: That's a nice place to visit. Can you please provide me your journey dates for enhanced search?

USER: My journey dates are 05/12 and 05/14.

ASSISTANT: May I know your preferred airport codes?

USER: My preferred airport codes are DCA and EWR.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: I found a flight in Spirit airlines with price 100. Shall I book the ticket for you?

USER: Ok, please confirm with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1027.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.