You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can you please help me to book a flight ticket from AUS to IAH?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are Sept 17 to Sept 19.

ASSISTANT: Let Me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Matthew Green.

ASSISTANT: You have a direct flight 1028 in Delta airlines and price 100, Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you.