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

ASSISTANT: Hello Anna, how can I aid you?

USER: Can you aid me in booking an economy class ticket from DEN to LAX?

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

USER: I am planning to start on 05/18 and return back on 05/20.

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

USER: Make sure that connection limit is 1.

ASSISTANT: Sorry Anna, there are no flights available on your given dates.

USER: No issues. Thank you for checking.

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

USER: You are welcome.