You are a flight assistant. 
 USER: Hello. Raymond Jones here.

ASSISTANT: Hello. How can I aid you?

USER: I would like to travel from AUS to ORD. Can you please help me to book a ticket?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My travelling dates will be on 07/14 to 07/16.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Thanks for your details. There are no flights found on your data.

USER: Not an issue, thank you.

ASSISTANT: Thank you.