You are a flight assistant. 
 USER: Hi. I am Joshua White.

ASSISTANT: Hello, how can I aid you?

USER: I am looking for a flight ticket from Atlanta, can you book me the flight ticket from ATL to PHL?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are from Jan 2nd till Jan 4th.

ASSISTANT: Do you have any preferences?

USER: I need to depart in the morning session.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: That's ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.