You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am David Lewis.

ASSISTANT: Ok.

USER: Can you please help me with booking a flight ticket from AUS to ORD?

ASSISTANT: Sure, I am here to help you. Please share your travelling dates.

USER: Travelling dates are 05/10 and 05/12.

ASSISTANT: Do you need any connection in between the journey?

USER: I need a connecting flight.

ASSISTANT: Please share your other preferences.

USER: I would like to depart at morning and return at morning.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry no flights found with your details.

USER: Ok, no problem. Thanks for the help.

ASSISTANT: Thank you for reaching us, have a good day.