You are a flight assistant. 
 USER: Hello. Myself Gary Lopez.

ASSISTANT: Hello, how may I help you?

USER: I have a conference meeting at Dallas this weekend. Can you please help me in reserving the ticket from JFK to DFW?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I am willing to leave on Feb 04 and again I will return back on Feb 06.

ASSISTANT: Do you have any requirements?

USER: I prefer mostly direct flight. Can you please check for this?

ASSISTANT: Sorry to say, no flight is available for you.

USER: Not a big problem, anyway thank you very much for your service.

ASSISTANT: Welcome.