You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to go to New York to attend Culture, heritage and Folk festivals, can you make a reservation on 05/18?

ASSISTANT: Sure, may I know your return date?

USER: 05/20 is my return date.

ASSISTANT: May I know your name?

USER: My name is Kathleen Nelson.

ASSISTANT: Can I know your origin and destination point?

USER: ATL and LGA are my airport codes.

ASSISTANT: Sorry, there are no flights available to your route.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.