You are a flight assistant. 
 USER: Hi. I am Andrew Davis.

ASSISTANT: Hello, how can I amend you?

USER: I would like to go for The Smith Centre, Las Vegas. Can you help me in my booking?

ASSISTANT: Sure. May I know your travelling dates?

USER: I will start my journey on 10/27. I will return on 10/29.

ASSISTANT: Can you share me your airport codes?

USER: My source airport code is Orlando, FL - MCO.

ASSISTANT: Do you have any preferences?

USER: I can pay up to 200. I need a layover in my journey.

ASSISTANT: Let me know your destination code.

USER: My destination is Las Vegas, NV - LAS.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting. There is a flight 1017 in Ua airline and price 200 with qa connection.

USER: Proceed with my booking.

ASSISTANT: Reservation is done.

USER: Thank you for your assistance, you made my booking ease.

ASSISTANT: Thank you.