You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am James Allen. Can you find a direct flight for me from JFK to OAK?

ASSISTANT: Sure, I am here to help you, please let me know your trip dates to search.

USER: Sure, my travelling dates should be 09/18 and 09/20.

ASSISTANT: Wait for a minute.

USER: Sure, take your time.

ASSISTANT: Based on your request there is a no flight.

USER: It's ok, thanks for your information.

ASSISTANT: My pleasure.Have a good day.