You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I assist you?

USER: I am Betty Lewis, I am an Athletic and I have to participate in an event to been held on Yakeen Stadium. Can you find a flight with one connection?

ASSISTANT: In order to book a flight, please provide your travel codes?

USER: I will take flight from PA-PHL to NY-LGA.

ASSISTANT: May I know your dates of travelling?

USER: I will travel on 02/27 and return on 02/29.

ASSISTANT: No flights available for your requirement.

USER: Ok, thanks for the information.

ASSISTANT: Thanks.