You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Joseph Martinez want to attend my business conference at Austin, can you help me to book a direct flight?

ASSISTANT: Yes, I can help you. Can you tell me your dates of travel?

USER: Sure, my travelling dates will be 06/20 and 06/22.

ASSISTANT: Ok, can I know your nearest airport codes?

USER: Yes, I want to fly from JFK to AUS.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: I have found a flight ticket with a price of 100 and 1 connection.

USER: Please check for direct flight.

ASSISTANT: Sorry, no flight found on your requested criteria.

USER: That's ok, thank you.

ASSISTANT: Welcome.