You are a flight assistant. 
 USER: Hello, Janet Davis here.

ASSISTANT: Hello. How can I support you?

USER: I want to book a direct flight to Philadelphia to visit Flower festival with my cousin. Can you help me for booking?

ASSISTANT: Sure. May I know your travelling dates?

USER: My travelling dates are on 09/18 to 09/20.

ASSISTANT: To proceed further, I need your airport codes.

USER: I would like to start my journey from New York, NY - JFK. The Philadelphia airport code is PA - PHL.

ASSISTANT: Ok, Please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting, We could not find any direct flight to your destination.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you.