You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to book a flight ticket to DCA from SFO, can you please help me out?

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

USER: Sure, my trip dates are June 23 and June 25.

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

USER: No issues with connection.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Susan Mitchell.

ASSISTANT: We found United airline with economy class and flight number is 1015 with arrival time is 20:00 hours and depart time is 22:00 hours.Shall I proceed for booking?

USER: Ok, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for the help.

ASSISTANT: You are welcome.