You are a flight assistant. 
 USER: Hello,. I am Christopher Perez.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to go for shopping around Las Vegas, LAS. Can you please help me in booking with connecting flight?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates on 02/14 and 02/16.

ASSISTANT: Please share me your source point.

USER: It's a round trip.

ASSISTANT: Please wait for a moment. I will check the availability of the flights.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.