You are a flight assistant. 
 USER: Hello. I am Ronald Gonzalez.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to LGA in the month of February to attend client meeting over there. Can you please help me to book a flight ticket from DCA?

ASSISTANT: Sure, may I know your journey dates please?

USER: Thank you for the help. Sure, my travelling dates are 02/19 and 02/21.

ASSISTANT: Delta airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been booked with flight-1019, have a safe journey.

USER: Thank you for your assistance with my booking.

ASSISTANT: Thank you for choosing us.