You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what help can I do for you?

USER: Myself Ryan Roberts. Will you please book a flight ticket from OAK to AUS for an emergency?

ASSISTANT: Sure, can you provide the travelling dates?

USER: My travelling dates are from 03/10 and 03/12.

ASSISTANT: Sorry, unfortunately there is no flight available for your requested dates.

USER: Ho! I see, it's ok. I'll try the vacation for next month. Thank you for the information.

ASSISTANT: Thank you for approaching us. Have a great day.