You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Amy Lee. I am looking for a flight from Chicago, can you help me out?

ASSISTANT: Sure, kindly mention your destination location?

USER: My origin airport code is ORD and destination is also same as my origin airport code.

ASSISTANT: May I know when you are willing to travel?

USER: I will start my journey on Sep 13th and return would be on Sep 15th.

ASSISTANT: Do you have any specifications to be met?

USER: Yes, I need my return flight in the morning session.

ASSISTANT: Sure, please wait a moment.

USER: I prefer business class flight.

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Thank you for your valuable time, sorry, no flights found as per your request.

USER: That's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for availing us.