You are a flight assistant. 
 USER: Hello, I am Dennis Gonzalez.

ASSISTANT: Hello. How may I assist you?

USER: I want to fly from Dallas to meet my uncle at Las Vegas, please book a flight ticket under price 500.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Kindly, mention your source and destination airport codes.

USER: My source code is DFW and Destination code is LAS.

ASSISTANT: When you have planned to depart and arrive?

USER: My travelling dates are from 01/03 to 01/05.

ASSISTANT: Please, wait a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is a connecting flight of AA airline available with fare 100. May I confirm your reservation with this flight?

USER: Please go with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1023.

USER: Thank you.

ASSISTANT: Thank you for choosing us.