You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning to visit Philadelphia, can you please book me a ticket from JFK to PHL?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: My preferable journey dates are from Jan 03 to Jan 05.

ASSISTANT: Please wait for a moment.

USER: Please search for direct flight on this route.

ASSISTANT: May I know your good name?

USER: My name is Sandra Taylor.

ASSISTANT: Please wait for a moment. Sorry, we found no flights on your given dates.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for reaching us.