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

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me in booking a flight ticket from WA - SEA to AZ - PHX?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: I want to fly on 08/14 and return on 08/16.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Southwest airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: You can proceed to booking.

ASSISTANT: I have successfully booked your ticket with flight-1000, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.