You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to reserve my ticket from DEN to ATL, can you please help me in booking?

ASSISTANT: Can I have your journey dates?

USER: Sure, my journey dates are from Apr, 09 to Apr, 11.

ASSISTANT: Do you need any connection limit?

USER: Yes, I want to fly in a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: Sure, my name is Jennifer Edwards.

ASSISTANT: There are no flights available on your routes.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Thank you for choosing us.