You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My plan to visit Las Vegas for a vacation at a resort, help me to find a flight with single connection.

ASSISTANT: Ok, Can you provide me journey dates please?

USER: I will fly on 03/17 and return on 03/19.

ASSISTANT: May I know your travelling points please?

USER: My source point is NY-EWR to NV-LAS.

ASSISTANT: Let me know your name for booking purpose?

USER: Margaret Campbell.

ASSISTANT: Ok, wait for some time. Thanks for waiting, there is no flights found on your requirements.

USER: Thanks for the information.

ASSISTANT: Thanks for choosing us.