You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: My name is Carolyn Williams.

ASSISTANT: How may I assist you, Carolyn?

USER: I need a ticket to be booked from Las Vegas, NV-LAS to Philadelphia, PA-PHL, for festival celebration.

ASSISTANT: Sure, on which date are you going to attend the festival?

USER: Travel dates are 09/23 to 09/25.

ASSISTANT: Do you need any stopover?

USER: Yes, connections limit is 1.

ASSISTANT: Can you please mention your price limit?

USER: Price limit is 500.

ASSISTANT: Ok Carolyn, please wait for a moment for finding a flight for you.

USER: Sure.

ASSISTANT: I am glad to inform you that there is a flight available with your details from Southwest airline having price only 100. Shall I proceed to book it for you?

USER: May I know flight number?

ASSISTANT: Sure, your flight number is 1015.

USER: Please proceed to book a flight.

ASSISTANT: Carolyn your ticket has been booked. Your e ticket will be send to your registered email id.

USER: Thanks.

ASSISTANT: Welcome.