You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to go for Beer festival in DCA with my friends. Can you please help me for booking from ORD?

ASSISTANT: Sure, can you please help me with your travel dates?

USER: Sure, I would like to travel on April 7 and return on April 9.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I prefer a connected flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I would prefer not to fly a low cost airline.

ASSISTANT: May I know your name to proceed further?

USER: Sure, my name is Karen Jones.

ASSISTANT: there is a flight available with price 400 and the connection is 1 with AA airline. Would you like me to proceed with the booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your booking is confirmed with 1016 flight number.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing our service.