You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a flight from DTW to DCA, can you help me out?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my trip dates are from Jun 10th till Jun 12th.

ASSISTANT: May I know your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No, thanks.

ASSISTANT: May I know your name please?

USER: Myself Nancy Clark.

ASSISTANT: We found an UA airline, flight number: 1015, price: 100, it is a direct flight.

USER: Please proceed with it.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.