You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you today?

USER: I am planning to meet my brother at New York, will you help me in booking the light ticket from CLT to LGA?

ASSISTANT: Sure, I am here to help you.May I know on which dates you are willing to travel?

USER: My preferable journey dates are Dec 25 and Dec 27.

ASSISTANT: Would you like to fly in economy class flight or business class flight?

USER: I am comfortable in any class.

ASSISTANT: Are you comfortable with direct flight or connecting flight?

USER: I prefer to travel in connecting flight.

ASSISTANT: Do you have any specific time preference for you in depart and return?

USER: No, thank you for asking.

ASSISTANT: May I know your airline preference?

USER: I am comfortable in any airlines.

ASSISTANT: For further proceeding, may I know your good name?

USER: Myself Angela Lewis.

ASSISTANT: Thank you for given all required information.Please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: Thank you for you patience.Sorry Angela Lewis, there is no flight found as per your travelling details.

USER: Ok, not an issue.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.