You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am planning to go for holiday trip to LGA. Can you please book me a flight ticket from DCA?

ASSISTANT: May I know your trip dates?

USER: My planned trip dates are Feb 13 and Feb 15.

ASSISTANT: Do you prefer any connections in between journey?

USER: Yes, I prefer a connection.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: There is a connected flight in Frontier airlines with the fare 100.

USER: Please, proceed with booking.

ASSISTANT: May I know your name?

USER: I am Laura Young.

ASSISTANT: Your booking is done.

USER: Thank you for assisting me.