You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: I have planned to book a plane ticket from IAH to DCA, can you assist me?

ASSISTANT: Sure, let me know your planned journey dates?

USER: My preferred dates are July 28th and July 30th.

ASSISTANT: Do you prefer direct flight or connecting flight?

USER: I need single connection between my trip.

ASSISTANT: Is there any other specifications?

USER: I need to travel in economy class.

ASSISTANT: May I know your good name?

USER: Eric Perez.

ASSISTANT: We found a connecting flight 1013 in Spirit airline with fare 200 and class is economy.

USER: Proceed booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.