You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to our agency.

USER: Myself Jason Jones.

ASSISTANT: Jason, how may I help you?

USER: I had planned to write a story on Brooklyn Bridge history, so my friend told me he will share his ideas and information about it at New York, NY - JFK. Can you please book a flight ticket for me?

ASSISTANT: Sure, from where would you like to start your journey. Please provide me the airport code.

USER: Yes, I would like to start my journey from PA - PHL.

ASSISTANT: May I know your journey dates please?

USER: Ok, my preferred airport codes are 04/30 and 05/02 respectively.

ASSISTANT: Please wait a moment.

USER: Please book a direct flight for me.

ASSISTANT: Jason, no flights has been found on your journey dates.

USER: That's ok, not a problem. Thank you for assisting me.

ASSISTANT: Thank you for choosing us.