You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a business class flight to meet my cousin at Washington, can you help me with booking?

ASSISTANT: Sure, may I know your airport codes to reserve your seat.

USER: I will fly from MCO to reach IAD.

ASSISTANT: May I know your trip dates?

USER: My trip dates are Oct 02 and Oct 04.

ASSISTANT: Do you need any connections between your trip?

USER: I need a direct flight.

ASSISTANT: May I know your name?

USER: I am Andrew Perez.

ASSISTANT: Do you need any other requirements?

USER: I want to travel in business class flight.

ASSISTANT: We regret to inform you that there is no flight going on your way.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us.