You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a plane in business class to reach Philadelphia?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are on Apr 11th to 13th.

ASSISTANT: Do you have any connection limit?

USER: Yes.

ASSISTANT: May I know your takeoff airport code?

USER: Sure, It is DCA.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can you please share your good name?

USER: My name is Scott Carter.

ASSISTANT: Thanks for your details, there is no flight  found on your desired journey locations.

USER: No issues, thank you.

ASSISTANT: Thank you for availing us.