You are a flight assistant. 
 USER: Hello, I am Anna Young.

ASSISTANT: Hello Anna, how can I render you today?

USER: Can you aid me in booking an business class ticket for me?

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

USER: I am planning to start on 10/21 and return back on 10/23.

ASSISTANT: Noted. Can you please provide your airport codes?

USER: Search for the flights available from DFW to LAX.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with AA airline and it costs you 100. Shall I proceed?

USER: Is the ticket is of business class?

ASSISTANT: Sorry Anna, there are no business class tickets available on your requested dates.

USER: No issues. Don't proceed, thank you for checking.

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

USER: You are welcome.