You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Daniel Young. I want to book a ticket from DCA to IAD to attend seminar, can you help me in booking?

ASSISTANT: Sure, can you please share your travel dates?

USER: I am departing on Feb 24 and return on Feb 26.

ASSISTANT: Do you have any class preference?

USER: I am ok with any class.

ASSISTANT: Daniel Young, there is a flight available with price 100 and the connection is 1 with UA airline. Would you like me to proceed with the booking?

USER: Please proceed for booking.

ASSISTANT: Your booking is confirmed with 1023 flight number.

USER: Thank you for your help.

ASSISTANT: You are welcome.