You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Donna Gonzalez, I want to reserve a flight ticket to Austin to participate in a foot ball match. Assist me in booking my flight ticket from Chicago IL-ORD.

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Could you please share your Austin airport code?

USER: I want to land on TX-AUS.

ASSISTANT: Ok, when you are willing to travel?

USER: I want to start on 10/06, I intend to return on 10/08.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry  Donna Gonzalez, no flights found on your requested travelling dates.

USER: Its ok, I will find out other alternative. Thank you for your effort.

ASSISTANT: Thank you for choosing us, have a nice day.