You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a flight from ATL to IAD, can you please help me in booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are June 23 and June 25.

ASSISTANT: Ok, which class do you prefer to travel?

USER: I prefer economy class flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Robert Scott.

ASSISTANT: There is a connecting flight 1001 of Frontier airlines, can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done in economy class.

USER: Thank you for booking.

ASSISTANT: Welcome.