You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Charles Parker. I am planning to travel in single connection flight. Help in finding a flight for me?

ASSISTANT: Parker, could you please provide your dates of journey?

USER: I like to travel on 02/25 and  mostly I will back on 02/27.

ASSISTANT: Sure, please tell me your source and destination airports codes?

USER: My airport codes are DCA to IAD.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: The flight with connections limit 1 of cost 100 has found, shall I book this ticket?

USER: Proceed for booking with that flight.

ASSISTANT: Your booking has been confirmed with airline UA and number 1013.

USER: Thank you for helping in booking a flight.

ASSISTANT: You are welcome.