You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: Could you please book a flight ticket from ATL to IAD?

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: My travel dates are May 20 and May 22.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: My name is Dennis Adams.

ASSISTANT: Let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT:  We found 1011 Delta airlines with single connection with economy class.

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket has been reserved with price 200.

USER: Thank you.

ASSISTANT: Thank you for choosing us.