You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Steven Thompson, want to travel from ATL to SFO. please help me in booking my ticket.

ASSISTANT: Sure, can you share your trip dates?

USER: Sure, my trip dates are from 06/04 to 06/06.

ASSISTANT: Do you have any specifications?

USER: Please make sure, I need a direct flight.

ASSISTANT: Sorry, there is flight on your given dates.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.