You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to attend a Seminar in Atlanta. Can you please help me for booking the flight ticket?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: My travelling dates are May 22 and May 24.

ASSISTANT: Could you share me your nearest airport codes?

USER: My airport codes are DCA and ATL.

ASSISTANT: Do you have any other specifications?

USER: I want to prefer single connecting flight.

ASSISTANT: Give me a moment.

USER: Ok, I will wait.

ASSISTANT: I have found an economy class ticket with 1 connection.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Can you share me your name for booking?

USER: My name is Patricia Green.

ASSISTANT: Your ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.