You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rachel Moore.

ASSISTANT: How can I help you?

USER: I want to celebrate my birthday in my friend's home which is in ATL. Can you help me in booking a ticket from PHL?

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

USER: My planning dates are from 03/06 to 03/08.

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

USER: It's fine, anyway thank you for your immediate response.

ASSISTANT: Thank you and have a nice day.