You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: Can You help me to book a flight ticket from LGA to AUS?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travel dates are Aug 01 and Aug 03.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Any other preferences?

USER: No, thanks for asking.

ASSISTANT: May I know your name?

USER: I am Dorothy Young.

ASSISTANT: Sorry, there are no flights found with your data.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.