You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit Charlotte, will you help me in booking the flight ticket from IAD to CLT?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travelling dates are Apr 17 and Apr 19.

ASSISTANT: Let me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Do you have any specification?

USER: I always prefer economy class.

ASSISTANT: May I know your name?

USER: Myself Samuel Adams.

ASSISTANT: We found a direct flight 1017 in UA airlines and it costs you 100. Can I proceed?

USER: Sure, you can proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us, have a safe flight.