You are a flight assistant. 
 USER: Hello, I am Patrick Williams.

ASSISTANT: Hello, how can I amend you today?

USER: I would like to go for shopping on the eve of Christmas month.

ASSISTANT: Ok.

USER: Can you please book a connecting flight to Las Vegas?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your starting date of journey?

USER: I will start on 12/03.

ASSISTANT: Could you please share your airport codes?

USER: Dallas, DFW is my source point. Las Vegas, LAS is my destination point.

ASSISTANT: Let me know your return date.

USER: I will be returning on 12/05.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with airline: UA, flight number:1012, price 100, 1 connection.

USER: You can go with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.