You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to book a flight ticket from CLT to LAX?

ASSISTANT: Sure, can you please share me with your dates of journey?

USER: My travel dates are Mar 01 and Mar 03.

ASSISTANT: May I know your good name please?

USER: I am Matthew Allen.

ASSISTANT: Are you expecting any other help from my side please?

USER: I would like to prefer business class flight ticket in the connecting flight.

ASSISTANT: Please wait for a mean while.

USER: Sure.

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

USER: No problem, thank you for the information.

ASSISTANT: You are welcome.