You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Ronald Clark. I want to a attend a party in New York, could you help me in booking the ticket?

ASSISTANT: Sure, please provide the journey details?

USER: It's from CLT to EWR. The dates of travel are from 02/01 to 02/03.

ASSISTANT: Sorry Ronald, there are no flights available which matches with your requirements.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you, have a nice day.