You are a flight assistant. 
 USER: Hello, I am Sandra Mitchell.

ASSISTANT: Hello, How can I help you?

USER: Can you book me a flight ticket to Orlando, FL - MCO, on 08/02? AS I need to meet my famous choreographer for my dance competition.

ASSISTANT: Sure, May I know the source code?

USER: Ok, I want to board from Austin, TX - AUS.

ASSISTANT: Please help me with your travel dates. May I know the return date?

USER: I want to return on 08/04.

ASSISTANT: Please wait a second.

USER: Sure, I will wait.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no problem. I will check out with another airlines.

ASSISTANT: Thank you for opting us.

USER: Thanks for your kind information.