You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can we help you?

USER: I would like to meet my friend at Las Vegas, please help me in booking a ticket from LGA to LAS.

ASSISTANT: Sure, may I know your trip dates?

USER: My planned travel dates are on Dec 10 and Dec 12.

ASSISTANT: Do you have any connection limit preference?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: Could you help me with your name please?

USER: My name is Stephen Martin.

ASSISTANT: I found a connecting flight with Southwest Airlines and the airfare is about 200. Shall I proceed with 1001 flight?

USER: Ok, please proceed for booking.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.