You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Please book a flight ticket from OAK to LAS?

ASSISTANT: Please share your trip dates?

USER: My journey dates are June 12 and June 14.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Andrew Smith.

ASSISTANT: Spirit Airlines providing direct flight in the economy class with fare 100, shall I proceed for booking?

USER: Go ahead.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.