You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: This is Mary Nelson. I want to book a flight ticket from NV - LAS to NY - LGA. Can you help me in that?

ASSISTANT: Sure, we are here to assist you.

USER: Thank you.

ASSISTANT: May I know your planned journey dates?

USER: I want to travel on 11/20 and return 11/22.

ASSISTANT: Do you have any other requirements?

USER: I need a direct flight.

ASSISTANT: We found a connecting flight with price of 100 and 1021 flight number. Shall I proceed?

USER: It is perfect for me. You can reserve it.

ASSISTANT: Your seat has been reserved with Spirit airline.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.