You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Cynthia Parker. I want to book a flight ticket from LGA to LAS. Could you help me in booking?

ASSISTANT: Sure, can you share your trip dates?

USER: My travelling dates are from Dec 16-18.

ASSISTANT: Do you have any preferences?

USER: I need direct flight.

ASSISTANT: May I know your name? As you have mentioned above. Give me a minute.

USER: Ok.

ASSISTANT: There is a direct flight with number 1019 in airline AA, the fare is 100 in economy class.

USER: Yes, please proceed.

ASSISTANT: Your ticket is reserved, the depart time is 20:00 PM and return time is 7:00 AM.

USER: Thank you.