You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is William Wilson.

ASSISTANT: How may I assist you?

USER: I am looking for a business class flight to travel from SEA to AUS. Can you help me?

ASSISTANT: Can you help me with your journey dates?

USER: Sure, the journey dates are 05/31 and 06/02.

ASSISTANT: Please hold on a moment.

USER: Ok.

ASSISTANT: Wilson, no flights has been found on your journey dates.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for choosing us.