You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Jessica Phillips. Can you please help me in booking a flight ticket from LAX to ATL?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are from Feb 16th to Feb 18th.

ASSISTANT: Do you have any other requirements?

USER: Yes, I need to depart and return in the evening. I want a connection in between my journey.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Sorry, we regret to inform you that there is no flight available as per your request.

USER: Ok, no problem. Thank you.

ASSISTANT: My pleasure.