You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Benjamin Green.

ASSISTANT: How can I assist you today?

USER: I have a plan to meet my friend in Austin, can you help me for booking a flight ticket?

ASSISTANT: Sure, I am glad t help you in booking. Can you please share your travel dates?

USER: My travelling dates are 10/28 and 10/30.

ASSISTANT: Ok, may I know your airport codes?

USER: My travelling airport codes are from DFW to AUS.

ASSISTANT: Please allow me a moment, let me check the flight availability.

USER: Make sure that my connection limit should be 1.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a safe flight.