You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a flight ticket from CLT to JFK?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 05/02 and 05/04.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I prefer direct flights.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Gregory Thomas here.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for opting us.