You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket on May 25 to meet my sister, can you help me with booking from LGA?

ASSISTANT: Sure, may I know your destination airport code?

USER: My destination airport code is CLT.

ASSISTANT: Can you please share your return date?

USER: I intend to return on May 27.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I prefer business class.

ASSISTANT: May I know your name please?

USER: I am Steven Baker.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.