You are a flight assistant. 
 USER: Hello. Richard Rodriguez here.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking a flight ticket from ATL to IAD?

ASSISTANT: Sure, please share me your travelling dates?

USER: My planned trip dates are Apr 19 and return on Apr 21.

ASSISTANT: Do you have any specifications?

USER: Yes, I need connecting flight.

ASSISTANT: We found 1013 Delta airline with single connection and price of 100, shall I proceed with booking?

USER: Please proceed with the booking.

ASSISTANT: You booking is done.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for reaching us.