You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I aid you?

USER: As its business trip, please book a ticket from Chicago, IL-ORD to Detroit, MI-DTW.

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are from 02/19 to 02/21.

ASSISTANT: Do you have any other specifications?

USER: Price limit is 1000. Connections limit is 1.

ASSISTANT: May I know your good name please?

USER: I am Kenneth Scott.

ASSISTANT: We found a UA airline, flight number: 1006, price: 100 with one connection. Shall I proceed to booking?

USER: Please book a ticket.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks.

ASSISTANT: Thank you for opting us.