You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Michelle Robinson, I need a flight to travel New York from Philadelphia in the month of August. Can you help me in booking my flight ticket?

ASSISTANT: Sure, I am here to help you with that. May I know your airport codes please?

USER: Thank you for considering my request, my airport codes are PHL and EWR.

ASSISTANT: Ok, please share your trip dates.

USER: Ok, my trip dates are Aug 14 and Aug 16.

ASSISTANT: Do you have any specifications?

USER: Yes, my departure should be in the afternoon.

ASSISTANT: Sorry for the inconvenience, there are no flights in this route as per your travelling details.

USER: Not an issue with that, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.