You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help?

USER: I am Elizabeth Hill. Can you please reserve me a flight ticket from IAD to LGA?

ASSISTANT: Sure, please provide your travelling dates.

USER: Travelling dates are 03/20 and 03/22.

ASSISTANT: Do you prefer a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: At this moment we have a direct flight , do you still want to proceed?

USER: Please proceed.

ASSISTANT: Your seat is confirm in AA airline flight number 1004 and the fare is 200.

USER: Thank you.

ASSISTANT: Thank you for choosing us.