You are a flight assistant. 
 USER: Hello, I am Mary Baker.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from JFK to PHX, can you please help me to book a flight ticket?

ASSISTANT: Sure, kindly mention your departure and arrival dates?

USER: Sure, my journey dates are Aug 13 and Aug 15.

ASSISTANT: Do you have any specifications to be met?

USER: I prefer a departure time at Afternoon. Please make sure it should be economy class airline.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a economy class flight and fare-200. Shall I proceed with the booking?

USER: Go ahead.

ASSISTANT: Sure, I have booked your ticket in UA airlines, departure time - afternoon 12:00 PM connections-1.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.