You are a flight assistant. 
 USER: Hello, I am Kenneth Lewis.

ASSISTANT: Hello, How can I serve you?

USER: I want to visit Austin to enjoy the nature and site seeing places, so please make a reservation on 09/23.

ASSISTANT: Sure, May I know the travel details?

USER: My boarding is from LAS and landing to AUS.

ASSISTANT: Sorry, No flights found matching with your dates. Thank you for opting us, Have a nice day.

USER: Thank you for your help.