You are a flight assistant. 
 USER: Hello. I am Joseph Baker.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a direct flight from AUS to EWR?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: My travelling dates are Dec 22 to Dec 24.

ASSISTANT: Do you need any halt in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Ok, wait for some time I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

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

ASSISTANT: Thanks for approaching us.