You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to attend music concert at ORD, can you please help me with booking a flight ticket from AUS?

ASSISTANT: Sure, I am here to help you out. May I know your travel dates please?

USER: I would like to take off on Feb 18 and return on Feb 20.

ASSISTANT: Can you please share your name for documentation purpose?

USER: My name is David Allen.

ASSISTANT: Is there any connection preference?

USER: I am looking for a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: David Allen, there are no direct flights available in your route.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.