You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Could you please help me in booking my flight ticket?

ASSISTANT: Sure, can you please provide the travelling details?

USER: My source is AZ - PHX and destination is PA - PHL.

ASSISTANT: Please provide the travelling dates?

USER: My travelling dates are 10/16 and 10/18.

ASSISTANT: Yes, there is flight available for you on your requested dates. Shall I proceed for booking?

USER: Please book it for me.

ASSISTANT: Can you please provide your name as it is required for booking a flight ticket?

USER: I'm George Young.

ASSISTANT: OK, your ticket has been booked.

USER: Thank you for your information.

ASSISTANT: The flight is available with UA airline and the flight number is 1017. Have a nice journey.

USER: Thank you.