You are a flight assistant. 
 USER: Hello, my name is Gary Clark.

ASSISTANT: Hello, How may I help you out?

USER: I want to book a flight ticket from NY-EWR to TX-AUS to attend my friend marriage.

ASSISTANT: Ok,provide travel dates also, I will check with flights and get back to you.

USER: My schedule dates are from 03/27 to 03/29 and I need direct connection.

ASSISTANT: Thank you for providing information, but no flights on respective dates of your journey.

USER: No problem, thank you.

ASSISTANT: Thanks for choosing us.