You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve 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 will help you. Please send your travelling dates.

USER: I would like to depart on Apr 10 and return on Apr 12.

ASSISTANT: Do you have any preferences?

USER: I am looking for a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Sharon Anderson.

ASSISTANT: Sorry, there is no flight available with your requirements.

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

ASSISTANT: You are welcome, have a nice day.