You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Nancy Taylor. I am planning to visit Lady Bird Lake at Austin, could you please help me with booking a flight ticket from JFK to AUS?

ASSISTANT: Sure, I will help you. Please provide me your travel dates.

USER: I would like to take off on 09/13 and return on 09/15.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no flight available on 09/13 to AUS.

USER: That's ok, I will find an another alternate way to complete my trip. Anyways, thank you for the information.

ASSISTANT: You are most welcome and thank you for choosing us.