You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Partrick Thompson. Can you book a flight ticket from Austin to washington.

ASSISTANT: Sure, can I know the travel dates please?

USER: My airport codes are AUS to IAD, travelling dates are 08/20 and 08/22.

ASSISTANT: Hold on for a moment. Let me check the availability.

USER: Ok.

ASSISTANT: I found a flight for you. Can I proceed with booking?

USER: It should have 1 connection limit.

ASSISTANT: Sorry, the flight has 0 connection limit.

USER: It's ok. Thank you for your details.

ASSISTANT: Welcome.