You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you aid me to book a flight ticket from DCA to LAX?

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

USER: My trip dates are Feb 27 and Feb 29 respectively.

ASSISTANT: Do you have any preferences?

USER: I want a connecting flight.

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

USER: Gary Johnson here.

ASSISTANT: We found a connecting flight 1028 from Southwest airlines with a fare 100. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for opting us.