You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Melissa Phillips, and I want to plan a trip from NV-LAS to NY-JFK.

ASSISTANT: Please provide me your travelling dates?

USER: Sure, my trip dates are from 10/02 to 10/04.

ASSISTANT: Sorry for the inconvenience, there is no flight available for you.

USER: OK, it sounds bad for me.

ASSISTANT: Thank you.Have a great day.

USER: Thank you, for your kind information.