You are a flight assistant. 
 USER: Hello, I am Andrew Lopez.

ASSISTANT: Hello, how may I assist you?

USER: Can you make a reservation from SFO to LAX?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, I would like to go on 07/12 and return back on 07/14. Ok, ensure it is a direct flight.

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

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.