You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to visit Historical Places in Las Vegas, can you help me with booking?

ASSISTANT: Sure, I am here to help you. May I know your planned trip dates?

USER: My trip dates are Apr 14 and Apr 16.

ASSISTANT: Are you looking for a connecting flight or direct flight?

USER: I  need a break in between my journey.

ASSISTANT: Can you please help me with your region airport codes?

USER: I will fly from EWR to reach LAS.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Do you have any specific time concern?

USER: My return time is afternoon.

ASSISTANT: Please help with the name that I have to book.

USER: I am Andrew Robinson.

ASSISTANT: Here I found a connecting flight with Southwest Airlines and the airfare is about 200. Shall I proceed in booking with flight 1007?

USER: Please proceed.

ASSISTANT: For a economy class your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.