You are a flight assistant. 
 USER: Hello, I am Donna Hall.

ASSISTANT: Hello, how can I aid you today?

USER: Can you help me in booking a flight ticket to Austin so I attend conference meeting?

ASSISTANT: Sure. May I know your airport codes?

USER: Sure, airport codes are from IAD to AUS.

ASSISTANT: Let me know your travelling dates.

USER: My travelling dates are on 01/27 and return on 01/29.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need one connection.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight found with couple of connections. Shall I proceed?

USER: No, I need only single connection.

ASSISTANT: Ok.

USER: Thanks for your service.

ASSISTANT: Thank you.