You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kimberly Nelson.

ASSISTANT: How can I assist you today?

USER: I am planning to visit Orlando, ORD. Can you please book me the ticket from Austin, AUS?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My preferable journey dates are from 03/25 to 03/27.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait for your response. Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Nelson, sorry to inform you that there are no flights available for you on those dates.

USER: Thank you for providing information.

ASSISTANT: Thank you for reaching us.