You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Nancy Parker here.

ASSISTANT: How may I assist you?

USER: I am looking for a direct flight to Orlando. Can you book the flight ticket?

ASSISTANT: Sure, I will help you. Can you please provide your source and destination airport codes?

USER: The airport codes are from SEA to MCO.

ASSISTANT: When would you like to plan your journey?

USER: Yes, the travel dates are from 11 June to 13 June.

ASSISTANT: Do you need a connecting flight?

USER: I need a direct flight. I am looking to depart in the morning time.

ASSISTANT: Do you have any airline preference?

USER: Make sure it is a business class.

ASSISTANT: Any other specifications?

USER: No, that is it.

ASSISTANT: Nancy Parker, no flights has been found on your requirements.

USER: That is not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.