You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a flight ticket from ORD to AUS. Can you help me with booking a flight ticket?

ASSISTANT: Sure, may I know your journey dates?

USER: 04/13 and 04/15 are my travelling dates.

ASSISTANT: Ok, mayI know your price limit?

USER: 5000 is my price limit.

ASSISTANT: Ok, do you prefer direct flight or a connected one?

USER: I need a connecting flight.

ASSISTANT: Sorry, no flights found on your required connection limit.

USER: Ok, thanks for your information.

ASSISTANT: May I know your name please?

USER: Debra Lewis is my name.

ASSISTANT: Thank you for availing us.