You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: Can you aid me to book a flight ticket from SEA to MCO?

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: My trip dates are Sep 21 and Sep 23 respectively.

ASSISTANT: Do you have any specifications?

USER: I want a connecting flight.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: David Lewis here.

ASSISTANT: We found a connecting flight 1000 from Spirit airline with a fare 100.

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.