You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a flight from AUS to attend a meeting at IAD. Can you find me flight?

ASSISTANT: Sure, when do you want to start and return on?

USER: I will fly on Aug 01 and return on Aug 03.

ASSISTANT: Do you need a connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: My name is Emma Turner.

ASSISTANT: Thank you for your details, we found a connecting flight 1000 in Delta airline which is in class economy. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you.