You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Sarah Taylor. Can you please help me in booking my flight ticket from AUS to IAH?

ASSISTANT: Sure, can you share your trip dates?

USER: My trip dates are Nov 27 and Nov 29.

ASSISTANT: Do you have any preferences?

USER: I need connecting flight.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you for reaching us.