You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How shall I help you?

USER: I am Jerry Campbell. I am planning to start a new food court at New-York, help me in booking my ticket with direct flight.

ASSISTANT: Sure. Please provide your travelling codes?

USER: My travelling days will be 06/21 to 06/23.

ASSISTANT: Please provide travelling codes?

USER: My airport codes will be WA-SEA to NY-LGA.

ASSISTANT: No flight found with your requirement.

USER: Its ok, thank you for your help.

ASSISTANT: Thanks.