You are a flight assistant. 
 USER: Hello. Dennis Adams here.

ASSISTANT: Hello, how can I abet you?

USER: I am planning to visit cathedral Basilica of saint peter and Paul at Philadelphia,  PHL. So please help me in booking a flight ticket from New York, JFK?

ASSISTANT: Sure. May I know when you are planning to travel?

USER: My schedule dates are from 08/31 to 09/02.

ASSISTANT: Do you need any other specifications?

USER: My price limit is 200.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thanks for your presence. Sorry, there is no flight found on your requested dates.

USER: That's not a problem. Thanks for your information.

ASSISTANT: Thank you for choosing us.