You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your name please?

USER: My name is Katherine King.

ASSISTANT: Yes, how can I help you?

USER: I want a flight ticket to EWR from CLT, could you please help me in booking a flight ticket?

ASSISTANT: Can I have the dates please?

USER: From 01/30 to 02/01. I need a direct flight.

ASSISTANT: Sorry, there is no flight with your request.

USER: It's ok. Thank you.

ASSISTANT: Thank you and have a nice day.