You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me in booking a flight ticket from IAD to DCA?

ASSISTANT: Sure, may I know your name please?

USER: My name is Nicholas King.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My travel dates are Dec 05 and Dec 07.

ASSISTANT: May I know your class preference please?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit please?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other specifications please?

USER: No.

ASSISTANT: There is a connecting flight of fare 600 with business class in United airline, shall I proceed for booking?

USER: Yes, proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1026.

USER: Thank you for the help.

ASSISTANT: Thank you for reaching us.