You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Paul Green here.

ASSISTANT: In what way can I help you?

USER: Can you please book me a ticket to DCA from LGA?

ASSISTANT: On what date you want to travel?

USER: Ok, my preferred travel dates are 11/19 and 11/21.

ASSISTANT: There is flight with single connection, can I proceed for booking in 1012 flight?

USER: Yes, please go ahead with the booking.

ASSISTANT: Your booking is confirmed in Spirit airlines.

USER: Thank you for the timely help.

ASSISTANT: Have a happy journey. Thanks for using our service.