You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am looking for a flight from LAX to IAD, can you please help me in booking?

ASSISTANT: Sure, please share your travel dates.

USER: My travelling dates are Mar 24 and Mar 26.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Helen Taylor.

ASSISTANT: Please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No, thanks for asking.

ASSISTANT: There is a business class ticket with cost 1000 in Spirit airlines with flight number 1017. Can I proceed for booking?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.