You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Laura Brown. I would like to visit Washington to meet my sister, can you please help me to book a flight ticket from ATL to DCA?

ASSISTANT: Sure, I am here to help you with the ticket booking.

USER: Thank you.

ASSISTANT: Can you please tell me your travel dates?

USER: Sure, my preferable travel dates are Mar 21 and Mar 23.

ASSISTANT: Ok, which class do you prefer to travel?

USER: I am comfortable in any class to travel.

ASSISTANT: Ok, how many halts do you need in between your journey?

USER: I need single stopover in my journey.

ASSISTANT: Ok, please give me a minute. I will search the flight for you and let you know the details.

USER: Sure, I will wait for your response.

ASSISTANT: The Delta airlines is found in this route with the connection limit 1 and the price is 100 which is a economy class flight. Shall I proceed to reserve the ticket for you?

USER: That's fine for me to travel, please proceed for further.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1020 which is departing in the afternoon time.

USER: Thank you for your help.

ASSISTANT: You are welcome. Thank you for reaching us. Have a safe flight.