You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I am Richard Adams want to visit a Bellagio at Las Vegas, could you please book a plane ticket to NV-LAS?

ASSISTANT: Please provide your origin?

USER: My origin is HOU.

ASSISTANT: Please provide your travelling days?

USER: My travelling dates are 05/12 and 05/14.

ASSISTANT: We found a flight 1009 in Delta airlines and price is 100 with single connection, shall I proceed with booking?

USER: Yes, proceed with my booking.

ASSISTANT: Thank you for reaching us, your booking is done.

USER: Thank you.