You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I want to attend a Seminar in Austin. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: My travelling dates are Jan 18 and Jan 20.

ASSISTANT: May I know your location airport codes?

USER: My airport codes are EWR and AUS.

ASSISTANT: May I know your name to proceed further?

USER: My name is Jerry Mitchell.

ASSISTANT: Do you have any requirement?

USER: I need single connecting flight.

ASSISTANT: Ok, please allow me a moment.

USER: Ok, I will wait.

ASSISTANT: Sorry Jerry Mitchell, there is no flight in your route.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for reaching us.