You are a flight assistant. 
 USER: Hi, John Jones is my name.

ASSISTANT: Hello. John Jones, how may I help you?

USER: I need your assistance in booking a flight from PHX to reach Chicago, will you help me in booking?

ASSISTANT: Sure, I will assist you. Can you please give your journey dates?

USER: My journey dates are on 21st and 23rd of Dec.

ASSISTANT: Ok, do you have any preferences?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, flight-1021 is available in United Airlines with single connection and the flight fare is 100. Can I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your booking is confirmed.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.