You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Patrick Hernandez.

ASSISTANT: I hope your doing well Patrick.

USER: I am looking for a flight from PHL to JFK, can you please help me in booking a flight ticket?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: I will start my journey on 12/10 and my return will be on 12/12.

ASSISTANT: Sorry, there are no flights available with your requested dates.

USER: It's ok, thank you.

ASSISTANT: Thank you and have a nice day.