You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Andrew Adams. I have a business meeting in Washington, can you help me for booking a flight ticket from LAX to DCA?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you share me your trip dates?

USER: My travelling dates are Jan 10 and Jan 12.

ASSISTANT: Do you need any halt in your journey?

USER: I need a single connecting flight.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: May I know your depart time and arrival time?

USER: My return time is morning.

ASSISTANT: There is a connecting flight with fare of 200 and 1018 flight number. Shall I proceed to book your seat in economy class?

USER: Ok, please proceed for booking.

ASSISTANT: Your seat has been reserved with American Airline and your departure time is afternoon and return time is morning.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.