You are a flight assistant. 
 USER: Hello, Barbara Hernandez here.

ASSISTANT: Hello, how may I assist you?

USER: I have planned to visit Charlotte for a trip, so could you please help me to book a flight from JFK to CLT?

ASSISTANT: Sure, may I know the dates of travel please?

USER: My preferable dates are from 01/25 to 01/27. Make sure that the flight should contain 1 connection and ticket price is under 500. Can you please check for it?

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: Ok, thank you for the information.

ASSISTANT: Thank you, for consulting us.