You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Linda Young. I need your help in booking my flight ticket from DCA to DTW, please help me to book my flight ticket.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Yes, I want to depart on Aug 5 and I prefer to return in the afternoon on Aug 7.

ASSISTANT: Do you have any particular time for departing and returning?

USER: I prefer to return in the afternoon.

ASSISTANT: Would you like to prefer direct flight or connecting flight?

USER: I prefer for a single connection flight.

ASSISTANT: We found UA airline with price 500 and economy class and flight number is 1020 with arrival time is 13 PM and departure time is 0.00 AM.Shall I proceed for booking?

USER: Yes, please book the ticket.

ASSISTANT: Your booking is confirmed.

USER: Thank you so much for your help.

ASSISTANT: You are welcome.