You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I want to fly from IAD ATL. Can you check the flight availability on that route?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My planned travel dates are 05/15 and 05/17.

ASSISTANT: May I know your connection limit?

USER: I want a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: No more, thank you.

ASSISTANT: May I know your good name?

USER: Sure, Charles Walker here.

ASSISTANT: We found a direct airline: Delta, flight number: 1016 and price is 200.

USER: Yes, you can proceed with that booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for the booking.

ASSISTANT: Thank you for reaching us.