You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: Amy Hernandez here, can you please check for a business class flight for my journey?

ASSISTANT: Sure, we are glad to help you. May I know your airport codes please?

USER: My airport codes are from DCA to ORD.

ASSISTANT: Ok, please share your planned dates.

USER: My journey dates are from Aug 4th to Aug 6th.

ASSISTANT: Do you have any other specifications?

USER: My depart time is in morning and return time is in afternoon. I need a single connecting flight.

ASSISTANT: Ok, please wait.

USER: Sure, I am waiting.

ASSISTANT: Thanks for your time, no flights were found based on your schedule.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: Thank you for choosing us.

USER: Most welcome.