You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am David Adams. Can you please assist me in booking a flight ticket from DCA to MSP?

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

USER: My planned journey dates are Aug 20 and Aug 22.

ASSISTANT: Would you like to travel in a direct flight or a connecting flight?

USER: I prefer a flight with single connection.

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

USER: I have to return in the morning time.

ASSISTANT: We found UA airline with price 200 and economy class and flight number is 1015 with arrival time is 10 AM and departure time is 8 AM.Shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you.

ASSISTANT: You are welcome.