You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I am Carol Hall want to travel to LGA, can you please book me a ticket from LAS?

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are from 12/13 to 12/15.

ASSISTANT: Do you need any halt in between your journey?

USER: I need a direct flight.

ASSISTANT: We found a direct flight with an airline Southwest of flight 1020 and price is 500 in business class. Can I confirm your booking?

USER: Yes, please confirm.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.