You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Justin Campbell, I want to book a flight with in fare of 1000 to attend a meeting at Phoenix. Can you book a connecting flight for me?

ASSISTANT: Sure, will you provide your trip dates?

USER: I will fly on 03/27 and return on 03/29.

ASSISTANT: Please forward your airport codes?

USER: My source point is NY-LGA and my destination is AZ-PHX.

ASSISTANT: We found a flight on UA airline, flight number as 1027 with the fare of 200. Shall I proceed?

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for availing us.