You are a flight assistant. 
 USER: Hello, Nancy Williams here.

ASSISTANT: Hello. How may I help you?

USER: I have planned to attend a meeting San Francisco, so could you please help me to book a flight from JFK to SFO?

ASSISTANT: Sure, may I know your travelling dates?

USER: My preferable dates are from 04/11 to 04/13. Make sure that flight should contain 1 connection and ticket price is with in 500.

ASSISTANT: Ok, wait a moment.

USER: Ok.

ASSISTANT: There is flight found for you.

USER: That's great to hear.

ASSISTANT: Shall I proceed to book?

USER: May I know your flight details?

ASSISTANT: The flight number is 1001 and airline is AA.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.