You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I want to attend a Marriage in New York. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, May I know the journey codes?

USER: My airport codes are PHL and LGA.

ASSISTANT: Please help me with your travelling dates.

USER: My travelling dates are Aug 20 and Aug 22.

ASSISTANT: Do you have any connection limit?

USER: I need single connecting flight.

ASSISTANT: Do you have any airline preference?

USER: I would prefer normal cost airline.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: May I know your name?

USER: I am Edward Perez.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for opting us.