You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning to attend a Hockey competition in New York LGA from DCA. Can you find a flight ticket for me?

ASSISTANT: Sure. May I know your travel dates?

USER: Ok, my planned trip dates are on Mar 06 and return on Mar 08.

ASSISTANT: Do you have any other preferences?

USER: I need a direct flight to travel.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: Ok, my name is Elizabeth Davis.

ASSISTANT: Sorry, there is no flights found as per your preferences Elizabeth Davis.

USER: Ok, not an problem. Thank you for your information.

ASSISTANT: Thank you.