You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am planning to visit a Lady Bird Lake in Austin, so please book a flight ticket from DTW to AUS.

ASSISTANT: Sure, let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Any other preference?

USER: No.

ASSISTANT: When are you planning to travel?

USER: I will start on Oct 21, return on Oct 23.

ASSISTANT: Can you share your name to proceed further?

USER: My name is Debra Turner.

ASSISTANT: Sorry, no flights found as per your requirement.

USER: No problem, thank you.

ASSISTANT: Thank you for contacting us.