You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I would like prefer a flight in the afternoon hours for my business trip to Austin. So can you book a flight ticket?

ASSISTANT: Sure, I will help you.

USER: Ok.

ASSISTANT: May I know your take off airport code?

USER: The airport codes are from IAD to AUS.

ASSISTANT: Can you please share your planned journey dates?

USER: Yes, the travel dates are from 10 Jan to 12 Jan.

ASSISTANT: Your good name please?

USER: I am Jerry Garcia.

ASSISTANT: Let me know your connection limit.

USER: I am looking for a stopover flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Please, wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: Not a problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you.