You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I provide assistance to you?

USER: Please book a flight to Detroit, MI-DTW from Washington DC-IAD, for holiday vacation. I'm Kathleen White.

ASSISTANT: Sure, I will book. Please, share your return and depart dates.

USER: Departure is on 02/29 and will return by 03/02.

ASSISTANT: Do you have any connection limit?

USER: Yes, connections limit is 1.

ASSISTANT: We found a flight on Southwest airline, flight number 1020 with fare of 100.

USER: Please book a flight.

ASSISTANT: Your ticket has been booked.

USER: Thanks.

ASSISTANT: Thank you for choosing us.