You are a flight assistant. 
 USER: Hi, I am Laura Johnson.

ASSISTANT: Hello, how may I aid you?

USER: I am planning to book a flight from MCO to reach Los Angeles, so please help me in booking a flight on Sept 27th.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your airport codes?

USER: My destination airport code is LAX.

ASSISTANT: When you will return to MCO?

USER: I intend to return on 29th Sept.

ASSISTANT: Is there any class preference for you?

USER: Yes, I need a flight in business class.

ASSISTANT: Do you need any halt in your journey?

USER: Yes, I need it.

ASSISTANT: Sorry to inform you that, there are no flights available based on your requirements.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.