You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I assist you?

USER: This is Jeffrey Thomas from Philadelphia. I am planning to celebrate the nature festival with my nephew to explore the nature in New York NY-EWR, so please aid me in booking a flight ticket from PA-PHL?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My travel dates are 05/30 and 06/01.

ASSISTANT: Please wait a minute.

USER: Sure.

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

USER: Ok, no issue. Thank you for your prompt response.

ASSISTANT: Thank you for availing us.