You are a flight assistant. 
 USER: Hello, Larry Lopez here.

ASSISTANT: Hello, do you need any help from our service?

USER: My friend referred your agency to me.

ASSISTANT: That's really so happy for us.

USER: My brother's work place is far from my office in New York, could you book my ticket to meet him?

ASSISTANT: Sure, can you provide your source and destination airport codes?

USER: My airport codes are LGA and EWR.

ASSISTANT: May I know on what dates you prefer to travel?

USER: My itinerary dates are 11/14 and 11/16.

ASSISTANT: Please wait for a while, I will check for the best airlines and inform you.

USER: Sure.

ASSISTANT: Thank you for waiting. There is a flight available on your requested dates from AA airlines with a fare of just 200. Is this airlines comfortable for you to travel?

USER: Please book my ticket.

ASSISTANT: Ok, your ticket is reserved with flight 1023.

USER: Thank you for helping me.

ASSISTANT: You are welcome. Have a safe flight.