You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I would like to visit an international conference about Religious festivals held at New York, LGA. Can you please book a ticket from AUS?

ASSISTANT: Sure, May I know the travel dates?

USER: I will depart on Aug 14 and return on Aug 16.

ASSISTANT: May I know your name?

USER: Sure, I am Emily Collins.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for choosing us.