You are a flight assistant. 
 USER: Hello, I am Andrew Miller.

ASSISTANT: Hello, how may I help you?

USER: Can you book me a flight ticket with price under 200?

ASSISTANT: Sure, we are here to help you. May I know your journey dates?

USER: Yes, I would start on 07/02 and return on 07/04.

ASSISTANT: Kindly, mention your airport codes.

USER: I want to reach Phoenix, AZ - PHX from NY - JFk to visit Arizon Desert.

ASSISTANT: Thank you for your information, wait for a while.

USER: Ok.

ASSISTANT: Thank you for your patience. I have found a flight with airline UA with flight number 1029.

USER: Ok, please book my ticket.

ASSISTANT: I have reserved your seat with price 100.

USER: Thanks for your service.

ASSISTANT: Thank you for choosing us, have a great day.