You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Alexander Jones here. Please help me out in booking the ticket from Mar 20 to Mar 22.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates to book a flight ticket?

USER: I already mentioned above.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: May I know your source point and destination point?

USER: My airport codes will be DTW to AUS.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: That's ok. Thank you.

ASSISTANT: Thanks for approaching us.