You are a flight assistant. 
 USER: Hello, I am Andrew Rodriguez.

ASSISTANT: Hello. How can I aid you?

USER: I have planned to visit Las Vegas Strip hotel for dinner with my husband, so I need to book a flight ticket to Las Vegas. Can you please help me to book a ticket from New York, NY - JFK?

ASSISTANT: Sure, I can help you with this booking. Can I know your travelling dates?

USER: Sure, I would like to travel on 12/29 and wish to return on 12/31.

ASSISTANT: Please share your destination airport code.

USER: Ok, my destination airport code is NV - LAS.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. Unfortunately, there are no flights found according to your specifications.

USER: No problem, thanks for your service.

ASSISTANT: Thank you for choosing us.