You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to celebrate my brother's birthday in central park at New York. So, please assist me in booking a flight ticket from Phoenix, PHX.

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 12/26 to 12/28.

ASSISTANT: Can I know your source point?

USER: My destination airport code is EWR.

ASSISTANT: Please wait for few minutes.

USER: I have already mentioned my source point. Ok.

ASSISTANT: We found a 1008 Southwest airline with single connection and price of 200. Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Please provide me your name?

USER: I am Karen Davis.

ASSISTANT: Thank you for reaching us.

USER: Thank you.