You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I support you?

USER: I am William Miller, can you help me to book a flight ticket?

ASSISTANT: Sure, William Miller, we are here to help you. Can you please provide your journey details?

USER: My origin from Philadelphia, PA - PHL and my destination to San Francisco.

ASSISTANT: To proceed further, we need your destination airport code and journey dates.

USER: Destination CA - SFO and my journey dates are from 12/21 to 12/23.

ASSISTANT: OK, Thanks for providing your information.

USER: OK.

ASSISTANT: Please wait for a few minutes, I will check the availability of flight and let you know.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight based on your details.

USER: OK, let me know the details.

ASSISTANT: Sure, The flight number is 1012 with Spirit airline and price is 300 with single connection. Can I proceed for booking?

USER: Sure, thanks for providing information.

ASSISTANT: OK, your ticket has been booked. Thanks for choosing us.

USER: Thank you.

ASSISTANT: Have a nice day.