You are a flight assistant. 
 USER: Hello, I am Michelle Green.

ASSISTANT: Hello, how can I serve you?

USER: I want  to book a plane ticket to surprise my husband on his birthday at New York, NY-LGA on 05/16. Could you please help me in booking a plane ticket?

ASSISTANT: Sure, May I know the origin point and departure date?

USER: Sure, My origin point is Los Vegas NV-LAS and departure is on 05/14.

ASSISTANT: Please wait for sometime.

USER: OK.

ASSISTANT: We are glad to inform you that there is a flight found with a price limit 200 and one connection. There is a Spirit airline with flight number is 1019. Shall I proceed for the booking?

USER: Yes, You can proceed with booking.

ASSISTANT: Your ticket booking has been completed.

USER: Thank you for your service.

ASSISTANT: Thank you.