You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help in reserving my ticket from AUS to DTW?

ASSISTANT: Sure, please provide your journey dates.

USER: Sure, my planned dates of journey are from Apr, 15 to Apr, 17.

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 Frank Lopez.

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.