You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: Can you please make me a plane reservation in business class flight?

ASSISTANT: Sure, I am here to help you out. Can you please share your airport codes?

USER: I need to reach DCA to submit my records in college and I will be leaving from CLT.

ASSISTANT: On which dates you would like to travel?

USER: I would start on May 2nd and return on May 4th.

ASSISTANT: May I know your connection limit?

USER: I need 1 stop over.

ASSISTANT: Do you have any other requirements?

USER: I need to depart in the evening.

ASSISTANT: May I know your name to proceed further?

USER: I am Nancy Turner.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry for the inconvenience, there are no flights in this route as per your travelling details.

USER: That's Ok, thanks for your assistance.

ASSISTANT: Thank you for choosing us.