You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to attend my sister's marriage from NY-LGA to NY-LGA.Can you please help me in booking the flight ticket?

ASSISTANT: Please provide your travelling dates.

USER: The travelling dates are from 11/29 to 12/01.

ASSISTANT: Can I know your name?

USER: Sure, my name is Linda Roberts.

ASSISTANT: Sorry Linda Roberts, there is no flight available.

USER: Thank you for your information.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.